Applies the modifier value specified by the AC Modifier field to the category specified by the Type field.

Known values for Type are:

• 0 ⟶ All
• 1 ⟶ Crushing
• 2 ⟶ Missile
• 4 ⟶ Piercing
• 8 ⟶ Slashing
• 16 ⟶ Base AC setting
  • Sets the targets AC to the value specified by the AC Modifier field. If the targets AC is already AC Modifier or below, this effect will do nothing.

Each modifier type to AC from this opcode is capped to the range [-20,20]. Each AC type total is capped to the range [-32768,32767].

Alters a characters Attacks per Round, by changing the Key by the modifier value specified by the 'Key Value' field, in the style specified by 'Type' field.

Key	Attacks per Round
0	0
1	1
2	2
3	3
4	4
5	5
6	0.5
7	1.5
8	2.5
9	3.5
10	4.5

Known values for 'Type' are:
0 Cumulative Modifier -> Key = Key + 'Key Modifier' value
1 Flat Value Modifier -> Key = 'Key Modifier' value
2 Percentage Modifier -> Key = (Key * 'Key Modifier' value) / 100
3 Cumulative Modifier -> Same as 0

Removes opcode #39 effects and the STATE_SLEEPING flag from the targeted creature(s).
This effect ignores durations attributed to it.

Applies the berserk effect to the targeted creature(s), as specifed by the 'Type' field.
Target will uncontrollably attack enemies if any are in view, and will occasionally attack neutral creatures. This effect only affects party members.

Known values for 'Type' are:
0 Default
1 Always Active
2 Blood Rage

Removes opcode #3 effects and STATE_BERSERK from the targeted creature(s). Does not remove opcode #245, opcode #246 and opcode #247 effects.
This effect ignores durations attributed to it.

Charms the targeted creature(s) according to value in the 'Charm Type' field, if the target is matched by the value in the 'General Type' field. Values for 'General Type' are from General.ids.
Known values for 'Charm Type' are:
0 Charmed (Target neutral after effect ends)
1 Charmed (Target hostile after effect ends)
2 Dire charmed (Target neutral after effect ends)
3 Dire charmed (Target hostile after effect ends)
4 Controlled by Cleric
5 Target is hostile

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Charisma = Charisma + 'Statistic Modifier' value
1 Flat Value Modifier -> Charisma = 'Statistic Modifier' value
2 Percentage Modifier -> Charisma = (Charisma * 'Statistic Modifier' value) / 100

Negative values for 'Statistic Modifier' act as follows for the 'Type' modes:
0 Charisma = Charisma - 'Statistic Modifier' value
1 Charisma = 25
2 Charisma = 25

Alters the colour of the area specified by the 'Location' field, to the colour gradient specified by the 'Gradient Number' field.
Known values for 'Location' are:
0 Body Metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

Alters the colour of the area specified by the 'Location' field, to the colour specified by the 'RGB Colour' field.
The 'RGB Colour' field is handled as follows:
Second byte = Red (0-255)
Third byte = Green (0-255)
Fourth byte = Blue (0-255)
Known values for 'Location' are:
0 Body metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

Pulses the area specified by the 'Location and Speed' field, at the rate specified by the 'Location and Speed' field, with the colour specified by the 'RGB Colour' field. If the colour values are all set to 0, the glow effect only occurs if the creature is in darkness; outside at night, inside a building, or standing in shadows.
The 'RGB Colour' field is handled as follows:
Second byte = Red (0-255)
Third byte = Green (0-255)
Fourth byte = Blue (0-255)
The 'Location and Speed' field is handled as follows:
First byte = Location
Third byte = Speed
A speed of 0 does not pulsate. A speed of 1 is fastest, and a speed of 255 is slowest.
Known values for 'Location' are:
0 Body metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Constitution = Constitution + 'Statistic Modifier' value
1 Flat Value Modifier -> Constitution = 'Statistic Modifier' value
2 Percentage Modifier -> Constitution = (Constitution * 'Statistic Modifier' value) / 100

Negative values for 'Statistic Modifier' act as follows for the 'Type' modes:
0 Constitution = Constitution - 'Statistic Modifier' value
1 Constitution = 25
2 Constitution = 25

Removes opcode #25 poison effects and STATE_POISONED from the targeted creature(s).

Damages the target by the value specified by the 'Damage Amount' field, with the damage type specified by the 'Type' field.
Known values for 'Type' are:
0 Crushing
1 Crushing Set to Value
2 Crushing Set to Percentage
65536 Acid
65537 Acid Set to Value
65538 Acid Set to Percentage
131072 Cold
131073 Cold Set to Value
131074 Cold Set to Percentage
262144 Electricity
262145 Electricity Set to Value
262146 Electricity Set to Percentage
524288 Fire
524289 Fire Set to Value
524290 Fire Set to Percentage
1048576 Piercing
1048577 Piercing Set to Value
1048578 Piercing Set to Percentage
2097152 Poison
2097153 Poison Set to Value
2097154 Poison Set to Percentage
4194304 Magic
4194305 Magic Set to Value
4194306 Magic Set to Percentage
8388608 Missile
8388609 Missile Set to Value
8388610 Missile Set to Percentage
16777216 Slashing
16777217 Slashing Set to Value
16777218 Slashing Set to Percentage
33554432 Magic Fire
33554433 Magic Fire Set to Value
33554434 Magic Fire Set to Percentage
67108864 Magic Cold
67108865 Magic Cold Set to Value
67108866 Magic Cold Set to Percentage
134217728 Stunning
134217729 Stunning Set to Value
134217730 Stunning Set to Percentage
268435456 Soul Eater
268435457 Soul Eater Set to Value
268435458 Soul Eater Set to Percentage
1073741824 Disease
1073741825 Disease Set to Value
1073741826 Disease Set to Percentage

The Dice values can be used to inflict varying damage amounts - e.g. 2d6 would do 2-12 damage (Damage type is still specified by the 'Type' value).
If 'Damage Amount' and the Dice values are both non-zero, the total damage inflicted is: 'Damage Amount' + Dice value.
'Damage Amount' can be positive or negative (though the damage sound will play in either case).

Instantly kills the targeted creature(s), in the style specified by the 'Death Type' value.
Known values for 'Text Notification' are:
0 Show death message
1 Don't show death message
Known values for 'Death Type' are:
0 Acid death
1 Burning death
2 Crushed death
4 Normal death
8 Exploding death
16 Stoned death
32 Freezing death
512 Permanent death
1024 Destruction death

Removes STATE_FROZEN_DEATH from the targeted creatures and restores them to 1 HP. Does not affect creatures without STATE_FROZEN_DEATH.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Dexterity = Dexterity + 'Statistic Modifier' value
1 Flat Value Modifier -> Dexterity = 'Statistic Modifier' value
2 Percentage Modifier -> Dexterity = (Dexterity * 'Statistic Modifier' value) / 100
3 Cat's Grace Spell ('Statistic Modifier' should be set to 0)

Negative values for 'Statistic Modifier' act as follows for the 'Type' modes:
0 Dexterity = Dexterity - 'Statistic Modifier' value
1 Dexterity = 25
2 Dexterity = 25

Applies the Haste effect to the targeted creature(s). See description for other games. IWD2 may grant +4 AC (untested).

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:

• 0 ⟶ Cumulative Modifier: HP = HP + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: HP = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: HP = (HP * 'Statistic Modifier' value) / 100

'Statistic Modifier' can be positive or negative.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: HP = HP + 'Statistic Modifier' value (affects current and max HP)
• 1 ⟶ Flat Value Modifier: HP = 'Statistic Modifier' value (affects current and max HP)
• 2 ⟶ Percentage Modifier: HP = (HP * 'Statistic Modifier' value) / 100 (affects current and max HP)
• 3 ⟶ As 0 (does not affect current HP)
• 4 ⟶ As 1 (does not affect current HP)
• 5 ⟶ As 2 (does not affect current HP)
• 6 ⟶ Non-cumulative Modifier: HP = HP + 'Statistic Modifier' value (affects current and max HP) (EE only)

Statistic Modifier can be positive or negative.

Known values for Mode are:

• 0 ⟶ Normal: Effect functions as dictated by the Type field.
• 1 ⟶ Do not update current HP.
  • This value is set automatically once the effect has been initially processed on a creature.
  • For normal operation, the special field MUST be zero.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Intelligence = Intelligence + 'Statistic Modifier' value
1 Flat Value Modifier -> Intelligence = 'Statistic Modifier' value
2 Percentage Modifier -> Intelligence = (Intelligence * 'Statistic Modifier' value) / 100

'Statistic Modifier' can be positive or negative.

Applies the invisibility effect, in the style specified by the 'Type' value.
Known values for 'Type' are :
0 Normal Invisibility -> affected creature makes the first attack with +4
1 Improved Invisibility -> affected creature stays invisible after attack
2 Toggle Invisibility -> affected creature invisibility state toggles when executing an action

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Lore = Lore + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Lore = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Lore = (Lore * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies LORE.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field. Luck affects the minimum damage caused by a weapon (up to the normal maximum damage of the weapon) and the attack roll modifier (up to a maximum of 20, excluding natural attack roll modifiers, e.g. high STR, invisibility etc) by Statistic Modifier amount. Statistic Modifier also affects the damge rolls of opponents (in feature blocks, not extension headers). The effect does not set STATE_LUCK.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Luck = Luck + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Luck = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Luck = (Luck * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Morale = Morale + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Morale = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Morale = (Morale * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

At least in EEs, known values for Mode are:

• 0 ⟶ BG2 mode – It's hardcoded to fill the following values:
  • Statistic Modifier = 10
  • Type = 1
  • m_done = 1 (internal field that immediately removes the effect from creature, no matter duration)
  • In addition, it checks if the creature is berserking, and if it is, it returns without doing anything.
• 1 ⟶ BG1 mode – Default (functions as expected)

Applies the horror effect to the targeted creature(s), in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Normal
1 Harpy Wail

Damages the target by the 'Damage Amount' value, in the style specified by the 'Type' field. It sets the STATE_POISONED state.
Known values for 'Type' are:
0 Inflict 'Damange Amount' per second
1 Inflict 'Damage Amount' per second halting at value controlled by 'Damage Amount' (pattern unknown)
2 Inflict 'Damage Amount' per second
3 Inflict 1 Damage per 'Damage Amount' seconds
4 Inflict 'Damage Amount' per round
5 Crash
6 Snakebite
8 Envenomed Weapon

Removes Cursed items in addition to all opcode #283 effects from the targeted creature(s).

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTACID.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTCOLD.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTELECTRICITY.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTFIRE.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies MAGICDAMAGERESISTANCE.

Raises the targeted creature(s) from the dead.
Known values for Restore creature animation? are:

• 0 ⟶ No
• 1 ⟶ Yes

This effect ignores durations attributed to it.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSDEATH.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSWANDS.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSPOLY.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSBREATH.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSSPELL.

Applies the silence effect to the targeted creature(s). Sets STATE_SILENCED to true.
A silenced creature cannot cast spells / use special abilities (unless flagged as Castable when silenced), bard song or initiate dialog.
The engine is hard-coded to allow these spells to be cast by a silenced creature:

• "SPWI219" (Vocalize)
• "SPIN649" (Teleport to Pocket Plane) in BG2/BGEE

Applies the unconsciousness effect to the targeted creature(s).
Known values for Wake on Damage? are (only in EEs):

• 0 ⟶ Yes
• 1 ⟶ No

Icon defines the index from STATDESC.2DA for custom portrait icons (EE only). Default value is Sleep. If it is set, also spell state PRONE will be set. Otherwise the creature will be moved to the backlist and become untargettable by most scripts.

This opcode sets the STATE_SLEEPING and STATE_HELPLESS flag bits.

Applies the slow effect to the targeted creature(s). It automatically grants the Slow portrait icon.

Displays the sparkle effect specified by the 'Type' field, in the colour specified by the 'Colour' field.
Known values for 'Colour' are:
0 Crash
1 No effect / Black
2 White / White -> Blue
3 Purple -> White / Purple -> White
4
.. White
12
13 Crash
Known values for 'Type' are:
1 Sparkle Puff
2 No effect?
3 Sparkle Shower

Alters the number of wizard spell slots available to the targeted creature(s), as specified by the Slot Amount Modifier field, at the level specified by the Spell Level field. Wizard spells are used by Bards, Sorcerers and Wizards in IWD2.

Known values for Spell Level are:

• 0 ⟶ Double spells
  • The amount of spell slots is doubled for the level specified by the Slot Amount Modifier value and all levels below
• BIT0 ⟶ Level 1
• BIT1 ⟶ Level 2
• BIT2 ⟶ Level 3
• BIT3 ⟶ Level 4
• BIT4 ⟶ Level 5
• BIT5 ⟶ Level 6
• BIT6 ⟶ Level 7
• BIT7 ⟶ Level 8
• BIT8 ⟶ Level 9
• BIT9 ⟶ Double spells
  • The amount of spell slots is doubled exclusively for the level specified by Slot Amount Modifier

The target creature(s) must have at least 1 slot at the selected level to have their slot count changed.

Negative slots start at 65535 (-1), and go from there. Even though the spellbook has room to display only 12 slots at once, the slots are still there and usable.

Slot Amount Modifier can be positive or negative.

Removes STATE_STONE_DEATH from the targeted creatures and restores them to 1 HP. Does not affect creatures without STATE_STONE_DEATH.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Strength = Strength + 'Statistic Modifier' value
1 Flat Value Modifier -> Strength = 'Statistic Modifier' value
2 Percentage Modifier -> Strength = (Strength * 'Statistic Modifier' value) / 100
3 Strength Spell ('Statistic Modifier' should be set to 0)

Negative values for 'Statistic Modifier' act as follows for the 'Type' modes:
0 Strength = Strength - 'Statistic Modifier' value
1 Strength = 25
2 Strength = 25

Stuns the targeted creature(s) in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Normal
1 Unstun on Damage
2 Power Word Stun

Unstuns the targeted creature(s) (opcode #45 and opcode #109). Also removes STATE_STUNNED from the creature.
This effect ignores durations attributed to it.

Removes the invisibility effect from the targeted creature(s) if they don't have STATE_NONDETECTION set. Also removes STATE_INVISIBLE and STATE_IMPROVEDINVISIBILITY.
This effect ignores durations attributed to it.

Removes the silence effect and STATE_SILENCED from the targeted creature(s).
This effect ignores durations attributed to it.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Wisdom = Wisdom + 'Statistic Modifier' value
1 Flat Value Modifier -> Wisdom = 'Statistic Modifier' value
2 Percentage Modifier -> Wisdom = (Wisdom * 'Statistic Modifier' value) / 100

Negative values for 'Statistic Modifier' act as follows for the 'Type' modes:
0 Wisdom = Wisdom - 'Statistic Modifier' value
1 Wisdom = 25
2 Wisdom = 25

The targeted creature(s) entire animation glows the colour specified by the 'RGB Colour' field, at the speed specified by the (3rd byte of the) 'Speed' field.
The 'RGB Colour' field is handled as follows:
Second byte = Red (0-255)
Third byte = Green (0-255)
Fourth byte = Blue (0-255)
The 'Speed' field is handled as follows:
Third byte = Speed (0-255)
A speed of 0 does not pulsate. A speed of 1 is fastest, and a speed of 255 is slowest.

Known values for 'Location and Speed' are:
0 Body metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

Alters the colour of the area specified by the 'Location and Speed' field, to the colour specified by the 'RGB Colour' field.
The 'RGB Colour' field is handled as follows:
Second byte = Red (0-255)
Third byte = Green (0-255)
Fourth byte = Blue (0-255)

Known values for 'Location' are:
0 Body metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

Alters the colour of the area specified by the 'Location' field, to the colour specified by the 'RGB Colour' field.
The 'RGB Colour' field is handled as follows:
Second byte = Red (0-255)
Third byte = Green (0-255)
Fourth byte = Blue (0-255)

Known values for 'Location' are:
0 Body metal
1 Body User 2
2 Body User 1
3 Body Skin
4 Body Leather
5 Body Armor
6 Body Hair
16 Weapon Metal
18 Weapon User 1
19 Weapon User 2
20 Weapon Leather
21 Weapon Armor
32 Shield Metal
33 Shield User 2
34 Shield User 1
36 Shield Leather
37 Shield Armor
48 Helmet Metal
49 Helmet User 2
50 Helmet User 1
52 Helmet Leather
53 Helmet Armor
255 Whole Body

This opcode has no effect.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

Kills the targeted creature(s) with HD less than those specified by the Dice values, if the target(s) match the IDS mask.
Known values for IDS File are:

• 2 ⟶ EA.IDS
• 3 ⟶ GENERAL.IDS
• 4 ⟶ RACE.IDS
• 5 ⟶ CLASS.IDS
• 6 ⟶ SPECIFIC.IDS
• 7 ⟶ GENDER.IDS
• 8 ⟶ ALIGN.IDS
• 9 ⟶ KIT.IDS (EE only)

IDS Entry is a value from the specified IDS file, indicating the specific creature type to affect.

Inverts the alignment of the targeted creature(s).

Alters the alignment of the targeted creature(s) to the value specified by Alignment.
Known values for Alignment are:

• 00 ⟶ None
• 17 ⟶ Lawful Good
• 18 ⟶ Lawful Neutral
• 19 ⟶ Lawful Evil
• 33 ⟶ Neutral Good
• 34 ⟶ True Neutral
• 35 ⟶ Neutral Evil
• 49 ⟶ Chaotic Good
• 50 ⟶ Chaotic Neutral
• 51 ⟶ Chaotic Evil

Dispels magic from the targeted creature(s) (excepting magical weapons eg. Spirtual Hammer). Depending on the value of the 'Type' field, the 'Level' field can be used to set the level of the effect.
Known values for 'Type' are:

• 0 ⟶ Always dispel
• 1 ⟶ Use Caster Level
• 2 ⟶ Use 'Level' field

With 'Type' of 1 or 2, the base chance of successfully dispelling is 50%. This chance is modified by the relative levels of the dispeller to the caster. Each level below gives a -10% chance, each level above gives a +5% chance. There is always a 1% chance of success or failure.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Stealth = Stealth + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Stealth = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Stealth = (Stealth * 'Statistic Modifier' value) / 100

The targeted creature(s) will fail to cast the type of spell specified by the 'Type' field, 'Percent Chance' percent of the time.
Known values for 'Type' are:
0 Mage Spells
1 Cleric Spells
2 Innate

Alters the number of priest spell slots available to the targeted creature(s), as specified by the 'Slot Amount Modifier' field, at the level specified by the 'Spell Level' field. Priest spells are used by Clerics, Druids, Paladins and Rangers.
Known values for 'Spell Level' are:
0 Double spells
1 Level 1
2 Level 2
4 Level 3
8 Level 4
16 Level 5
32 Level 6
64 Level 7
512 Double spells
For a 'Spell Level' of 0, the amount of spell slots is doubled for the level specified by the 'Slot Amount Modifier' value and all levels below. For a 'Spell Level' of 512, the amount of spell slots is doubled for the level(s) specified by the 'Slot Amount Modifier' field. The target creature(s) must have at least 1 slot at the selected level to have their slot count changed. If the resultant slot count is negative, the creature is given 12 slots.

'Statistic Modifier' can be positive or negative.

Gives the targeted creature(s) infravision and sets STATE_INFRAVISION.

Removes infravision from the targeted creature(s).
This effect ignores durations attributed to it.

Applies the blur effect to the targeted creature(s) and sets STATE_BLUR. Graphical displacement is affected by movement rate.

Fades the targeted creature(s) in or out. The 'Fade speed' field controls how fast it happens.
Known values for 'Fade speed' are:
0 1 round (105 ticks by default)
..
255 Instant

Known values for 'Type' are:
0 Default
1 Fade In
2 Fade Out

This effect sets stat #60 (TRANSLUCENT) to param #1.

Summons a creature, with position and EA based on the Mode field. The Resource key should be set to the filename of the creature to summon.

Mode	Position	EA
0, 1	effect	align with target creature
3	target creature	align with target creature
4	target creature	CRE file
5	effect	align against target creature
2, else	effect	CRE file

Unsummons a creature, with feedback controlled by Text Notification.
Known values for Text Notification are:

• 0 ⟶ No text notification
• 1 ⟶ Show text notification

Applies the non-detection effect to the targeted creature(s), setting STATE_NONDETECTION while active. This effect is negated by opcode #70. While in the non-detection state, the creature is immune to opcode #47 and opcode #116, though they are affected by effects that remove illusionary protections by school or secondary type.

Removes opcode #69 and the STATE_NONDETECTION flag from the targeted creature(s).
This effect ignores durations attributed to it.

Alters the gender of the targetted creature(s) to the value specified by the Gender Modifier field, in the style specified by the Type value.
Known values for Type are:

• 0 ⟶ Reverse Gender
• 1 ⟶ Flat Value Modifier: Gender = 'Statistic Modifier' value (values from GENDER.IDS)

The effect modifies SEX_CHANGED.

Alters the IDS state of the targeted creature(s) specified by the IDS File field, to the value specified by the IDS Entry field.
Known values for IDS File are:

• 0 ⟶ EA
• 1 ⟶ Generic / General
• 2 ⟶ Race
• 3 ⟶ Class
• 4 ⟶ Specific
• 5 ⟶ Gender
• 6 ⟶ Align / Alignmen (iwd1, pst)

Inflicts a percentage extra damage (set by the 'Damage Modifier' parameter) of the type specified by the 'Type' parameter.
Known values for 'Type' are:
0 Standard
1 Fire
2 Cold
3 Electricity
4 Acid
5 Magic
6 Poison
7 Slashing
8 Piercing
9 Crushing
10 Missile

Applies the blindness effect to the targeted creature(s). This sets VISUALRANGE to 2, sets STATE_BLIND to true and incurs a cummulative 10 point base THAC0 penalty (4 on EE games, plus a cumulative 4 point base AC penalty. All of that is unverified in PST). Maintains its own portrait icon Blind.

Removes the blindness effect and the STATE_BLIND flag from the targeted creature(s).
This effect ignores durations attributed to it.

Applies the feeblemind effect to the targeted creature(s) – creatures are unselectable, immobile and do not respond to combat. Maintains the target's Intelligence to 3 (stacks normally with opcode #19).

Removes the feeblemind effect and the STATE_FEEBLEMINDED flag from the targeted creature(s).
This effect ignores durations attributed to it.

Set the Damage parameter as the amount of damage, and the Disease Type parameter as how the disease functions.
Known values for 'Type' are:
0 Hit Points per second
1 Hit Points per round
2 Hit Points per Second
3 Seconds per Hit Points
4 Strength Penalty
5 Dexterity Penalty
6 Constitution Penalty
7 Intelligence Penalty
8 Wisdom Penalty
9 Charisma Penalty
10 Slow Effect
11 Mold Touch
13 Contagion
14 Cloud of Pestilence (at least in IWD2)
15 Dolorous Decay (at least in IWD2)

'Damage' can be positive (penalty) or negative (bonus).

Removes the disease and feeblemind effects from the targeted creature(s).
This effect ignores durations attributed to it. It also unsets the feeblemind state bit.

Applies the Deafness effect on the targeted creature(s) – creatures suffer a casting failure rate of 50% (20% in bg1, unknown in iwd1). The casting failure rate refers to Wizard and Priest spells only. This is cumulative with Miscast Magic.

Removes the deafness effect from the targeted creature(s).
This effect ignores durations attributed to it.

Sets the script type specified by the Type value to the contents of the resource key.
Known values for Type are:

• 0 ⟶ OVERRIDE
• 1 ⟶ AREA
• 2 ⟶ SPECIFICS
• 4 ⟶ CLASS
• 5 ⟶ RACE
• 6 ⟶ GENERAL
• 7 ⟶ DEFAULT

Gives the targeted creature(s) immunity to the weapon type specified by the 'Type' value.
Known values for 'Type' are:
0 Instant
1 Arrow
2 Arrow Exploding
3 Arrow Flaming
4 Arrow Heavy*
5 Arrow (Non-Magical)
6 Axe
7 Axe Exploding
8 Axe Flaming
9 Axe Heavy*
10 Axe (Non-Magical)
11 Bolt
12 Bolt Exploding
13 Bolt Flaming
14 Bolt Heavy*
15 Bolt (Non-Magical)
16 Bullet
17 Bullet Exploding
18 Bullet Flaming
19 Bullet Heavy*
20 Bullet (Non-Magical)
26 Dagger*
27 Dagger Exploding
28 Dagger Flaming
29 Dagger Heavy
30 Dagger (Non-Magical)
31 Dart
32 Dart Exploding
33 Dart Flaming
34 Dart Heavy*
35 Dart (Non-Magical)
36 Magic Missile
37 Fireball
39 Lightning Bolt
41 Sleep
55 Spear
56 Spear Exploding
57 Spear Flaming
58 Spear Heaby
59 Spear (Non-Magical)
62 Web Travel
63 Web Ground
64 Gaze
65 Holy Might
66 Flame Strike
67 Magic Missile 1
68 Magic Missile 2
69 Magic Missile 3
70 Magic Missile 4
71 Magic Missile 5
72 Magic Missile 6
73 Magic Missile 7
74 Magic Missile 8
75 Magic Missile 9
76 Magic Missile 10
94 Cloud
95 Skull Trap
96 Colour Spray
97 Ice Storm
98 Fire Wall
99 Glyph
100 Grease
101 Flame Arrow Green
102 Flame Arrow Blue
103 Fireball Green
104 FireBall Blue
105 Potion
106 Potion Exploding
107 Acid Blob
108 Scorcher
109 Travel Door
186 Cloudkill
187 Flame Arrow Ice
188 Cow
189 Hold
190 Scorcher Ice
191 Acid Blob Mustard
192 Acid Blob Grey
193 Acid Blob Ochre
217 Icewind Magic Missile
313 Modenkainen's Force Missiles
345 Sekolah's Fire

This opcode has no effect.

This opcode has no effect.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTSLASHING.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTCRUSHING.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTPIERCING.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTMISSILE.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Fatigue = Fatigue + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Fatigue = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Fatigue = (Fatigue * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies FATIGUE.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Drunkenness = Drunkenness + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Drunkenness = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Drunkenness = (Drunkenness * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies INTOXICATION.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies TRACKING.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Level = Level + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Level = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Level = (Level * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Exceptional Strength = Exceptional Strength + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Exceptional Strength = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Exceptional Strength = (Exceptional Strength * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies STREXTRA.

Restores HP to the value of 'Regeneration Amount' in the style specified by the 'Type' field, to the targeted creature(s).
Known values for 'Type' are:
0 Restore 'Regeneration Amount' per second
1 Restore 'Regeneration Amount' as a percentage of total HP
2 Restore x HP every second
3 Restore 1HP every x seconds
4 Restore 'Regeneration Amount' per round

Alters spell durations of the targeted creature(s), to the percentage specified by the Duration Modifier field, affecting the spell type specified by the Type field. Timing mode 0 is the only timing mode reliably affected. Timings handled through PRO files are ignored.
For instance:

• Duration Modifier = 0 ⟶ Spells have no duration
• Duration Modifier = 100 ⟶ Spells have normal duration
• Duration Modifier = 200 ⟶ Spells have double duration

Known values for Type are:

• 0 ⟶ Mage
• 1 ⟶ Priest
• 2 ⟶ Bard Song (EE only)

The effect modifies SPELLDURATIONMODMAGE and SPELLDURATIONMODPRIEST.

Gives the targeted creature(s) protection from the creature type specified by the IDS File and IDS Entry fields.
Known values for IDS File are:

• 2 ⟶ EA.IDS
• 3 ⟶ GENERAL.IDS
• 4 ⟶ RACE.IDS
• 5 ⟶ CLASS.IDS
• 6 ⟶ SPECIFIC.IDS
• 7 ⟶ GENDER.IDS
• 8 ⟶ ALIGN.IDS
• 9 ⟶ KIT.IDS (EE only; broken at least in 2.5)

To be protected from any creature, leave IDS Entry at 0 (zero), and IDS File at 2. Protection will grant the bearer immunity from being attacked, cast a spell at, or otherwise targeted by creatures with this type.

Gives the targeted creature(s) protection from the opcode specified by the Opcode field.

Gives the targeted creature(s) protection from effects (opcodes) whose Power attribute is equal to Spell Level (range: 0 – 9).

Alters the name of the targeted creature(s) to the strref specified by the String Reference field. When used with a duration timing, after the duration, the name will be set to a blank entry.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: XP = XP + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: XP = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: XP = (XP * 'Statistic Modifier' value) / 100

The effect modifies XP.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Gold = Gold + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Gold = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Gold = (Gold * 'Statistic Modifier' value) / 100

The effect modifies party gold or GOLD for everyone else.

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Morale Break = Morale Break + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Morale Break = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Morale Break = (Morale Break * 'Statistic Modifier' value) / 100

The effect modifies MORALEBREAK.

Sets the portrait of the targeted creature(s) to that specified in the resource key, based on the Type value. This effect ignores durations attributed to it.
Known values for Type are:

• 0 ⟶ Small portrait
• 1 ⟶ Large portrait

Sets the individual reputation of the targeted creature(s) to the value specified by the Statistic Modifier field in the style specified by the Type field.
This does not affect the main reputation of the Party, unless Type 3-5 are used. Though it can affect ranger/paladinhood of any target.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Reputation = Reputation + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Reputation = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: Reputation = (Reputation * 'Statistic Modifier' value) / 100
• 3 ⟶ Increment Party Reputation by 10 * 'Statistic Modifier', cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)
• 4 ⟶ Party Reputation = 'Statistic Modifier' value, cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)
• 5 ⟶ Party Reputation = (Party Reputation * 'Statistic Modifier' value) / 100, cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)

The effect modifies REPUTATION.

Applies the hold effect to the targeted creature(s), if the targeted creature(s) match the value specified by the 'IDS Entry' field, in the specified 'IDS File'.
Known values for 'IDS File' are:
2 EA.ids
3 General.ids
4 Race.ids
5 Class.ids
6 Specific.ids
7 Gender.ids
8 Align.ids

This opcode has no effect.

Creates the item specified by the resource key. The number of items created is controlled by the Amount field. The item is created in the Magical Weapon Slot.

Removes a single instance (or stack) of the item specified by the resource key from the targeted creature(s). Items in container items (e.g. Bags of Holding) will not be removed. If a creature has multiple instances of the item, the one in the lowest slot number (see SLOTS.IDS) is removed. "EFF_M02" is hard-coded to play when an item is removed. This effect should be used to remove equipped items (use opcode #123 for inventory items).

This opcode has no effect.

This opcode has no effect.

Detects the alignment specified by the Alignment Mask field.
Known values for Alignment Mask are:

• 0 ⟶ Evil (glow Red)
• 1 ⟶ Neutral (glow Blue)
• 2 ⟶ Good (glow Green)

Removes invisibility from the targeted creature(s). Also removes STATE_INVISIBLE and STATE_IMPROVEDINVISIBILITY.
This effect ignores durations attributed to it.

Reveals the current area.

This opcode has no effect.

Applies the mirror image effect to the targeted creature(s), creating mirror images in the style specified by the 'Type' field. The number of images is dicated by the level of the caster.
Know values for 'Type' are:
0 Normal
1 Reflected Image

Gives the targeted creature(s) immunity to weapons as specified by the Type field. The Enchantment field is used if Type is set to 0.
Known values for Type are:

• 0 ⟶ Enchanted
• 1 ⟶ Magical
• 2 ⟶ Non-Magical
• 3 ⟶ Silver
• 4 ⟶ Non-Silver
• 5 ⟶ Non-Silver / Non-Magical
• 6 ⟶ Two-Handed
• 7 ⟶ One-Handed
• 8 ⟶ Cursed
• 9 ⟶ Non-Cursed
• 10 ⟶ Cold Iron
• 11 ⟶ Non Cold Iron

This opcode has no effect. Sometimes known as "Graphics: (Visual Animation Effect)".

Creates the item specified by the resource key. The number of items created is controlled by the Charges field. The number of secondary charge is determined by Parameter3. The number of tertiary charges is determined by Parameter4 (external EFFs). The item is created in the Inventory.

Removes the item specified by the resource key from the targeted creature(s). This effect should be used to remove inventory items (use opcode #112 for equipped items).
In particular:

• Removes all item(s) in the first slot containing the specified resource key from the targeted creature(s).
• Items in container items (e.g. Bags of Holding) will not be removed.
• Inventory slots are checked in numerical order from SLOTS.IDS.

Teleports the targeted creature(s) in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Default
1 Source to Target
2 Return to Saved Location
3 Exchanged Source and Target

Applies the knock effect to the targeted creature(s).

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
The engine allows values for Statistic Modifier from 0 (immobile) to 255 (instantaneous), though behaviour is only consistent in the range 0 – 30.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Movement = Movement + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Movement = 'Statistic Modifier' value
• 2 ⟶ Non-stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100
• 5 ⟶ Multiplicative Stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100 (EE only)

Summons a number of monsters.
Each CRE file has a Creature Power Level number. The amount of monsters summoned by this effect depends on this value, the special parameter and if it's used in SPL / ITM or from an external EFF.
When used in SPL/ITM files, known value for Mode are:

• 0 ⟶ Summon until Creature Power Level equals/exceeds Number
• 1 ⟶ Summon amount equal to Number
• 2 ⟶ Summon until Creature Power Level equals/exceeds Caster's Level

When used in external EFF files, known value for Mode are:

• 0 ⟶ Summon until Creature Power Level equals/exceeds Number
• 1 ⟶ Summon amount equal to 'Number' + Dice rolls
• 2 ⟶ Summon until Creature Power Level equals/exceeds Caster Level field

The Type field sets which 2DA file to pick the creatures to summon from. The 2da files are monsumX and anisumX, where X = 'Type' + 1. 0–4 are allied , 5–9 are hostile. The specific 2da files used are:

• 0 ⟶ MONSUM01: Monster Summon 1
• 1 ⟶ MONSUM02: Monster Summon 2
• 2 ⟶ MONSUM03: Monster Summon 3
• 3 ⟶ ANISUM01: Animal Summon 1
• 4 ⟶ ANISUM02: Animal Summon 2
• 5 ⟶ MONSUM01: Monster Summon 1 Hostile
• 6 ⟶ MONSUM02: Monster Summon 2 Hostile
• 7 ⟶ MONSUM03: Monster Summon 3 Hostile
• 8 ⟶ ANISUM01: Animal Summon 1 Hostile
• 9 ⟶ ANISUM02: Animal Summon 2 Hostile

A custom .2da file can be entered in the resource field (untested in bg1).
If used from an external effect (.eff), the vvc field controls the bam file played when summoning.

Applies the confusion effect to the targeted creature(s). The creature will run around uncontrollable, randomly attacking.

Applies a bless effect to the targeted creature(s).
In particular:

• Grants a bonus/penalty to all Saving Throws equal to Statistic Modifier.
• Grants a bonus/penalty to Current and Maximum Hit Points equal to 'Statistic Modifier'd8.
• Grants a bonus/penalty to base THAC0 equal to Statistic Modifier.
• Grants a bonus/penalty to base weapon damage equal to Statistic Modifier.
• Saving throws, THAC0, and Damage modifiers read only the first byte of Statistic Modifier for their value, the last 3 bytes are ignored.
• HP modifier uses the whole 4 bytes of Statistic Modifier.
• HP modifier is always positive (negative values become zero), but because Max HP itself is not bounded, it can overflow into negative amounts (Max HP is 32767).
• When used in external EFFs, Parameter2 controls the exact amount of HP gained.

Modifies the THAC0, damage and morale of the target creature(s) by the amount specified by the Modifier parameter.
In particular:

• Modifies THAC0
• Modifies DAMAGEBONUS
• Morale is a 5 point bonus.

Applies the chant effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

Raises the strength, constitution and dexterity of the targeted creature(s) by the value specified by the Statistic Modifier field. A negative value of Statistic Modifier sets the Strength, Constitution and Dexterity of the targeted creature(s) to 25.

Applies the luck effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

Applies the petrification effect to the targeted creature(s). This effects kills & removes PC's from the party, and ends the game if used on the Protagonist (not in IWDs or PST).

Polymorphs the targeted creature(s) into the creature specified by the resource key, in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Resistances/statistics gained, spell-casting disabled, colouring
1 No resistances/statistics gained, spell-casting enabled, colouring
2 No resistances/statistics gained, spell-casting enabled, no colouring

Renders the targeted creature(s) partially visible: removes normal invisibility, but not the improved invisibility state; the targeted is visible and attackable, but not targetable by spells.

The effect has no meaning on visible targets.
This effect has no duration.

Applies the chant effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

This opcode works as the reverse of Chant (positive values decrease Luck, negative values increase Luck).

The targeted creature(s) shows the animation sequence specified by the 'Animation Sequence' field.
Known values for 'Type' are:
1 Lay down (short)
2 Move hands (short)
3 Move hands (long)
4 Move shoulder (short)
5 Move shoulder (long)
6 Lay down (long)
7 Breath rapidly (short)
8 Breath rapidly (long)

Displays the strref specified by the String Reference value.

Creates a 2D animation for casting glow. These effects are usually used for casting glows based on the spell school.
Known values for 'Type' are:
0 .. 8 = Crash
9 Casting Glow Aqua (Necromancy)
10 Casting Glow Blue (Alteration)
11 Casting Glow Gold (Enchantment)
12 Casting Glow Green (Abjuration)
13 Casting Glow Magenta (Illusion)
14 Casting Glow Purple (Conjuration)
15 Casting Glow Red (Invocation)
16 Casting Glow White (Divination)
17+ Crashes

Shows the lighting effect (a .bam file) specified by the 'Type' value at the location specified by 'Target'. These effects are usually used for spell hits based on the spell school.
Known values for 'Target' are:
0 Current Location
Non-0 Target Location
Known values for 'Type' are:
0 aqua SHAIR
1 aqua SHEARTH
2 aqua SHWATER
3 *crash*
4 blue SHAIR
5 blue SHEARTH
6 blue SHWATER
7 *crash*
8 gold SHAIR
9 gold SHEARTH
10 gold SHWATER
11 *crash*
12 green SHAIR
13 green SHEARTH
14 green SHWATER
15 *crash*
16 magenta SHAIR
17 magenta SHEARTH
18 magenta SHWATER
19 *crash*
20 purple SHAIR
21 purple SHEARTH
22 purple SHWATER
23 *crash*
24 red SHAIR
25 red SHEARTH
26 red SHWATER
27 *crash*
28 white SHAIR
29 white SHEARTH
30 white SHWATER
31 *crash*
32 red MUSHROOM
33 grey MUSHROOM
34 green MUSHROOM
35 red PILLAR
36 white PILLAR
37 white SWIRL
38 Shadow Door (SPDIMDR) (BGs)
39 Finger of Death (SPFDEATH) (BG2)
40+ *crash* (BG2)

Shows the icon specified by the 'Icon' field on the targeted creature(s) portrait.
Known values for 'Icon' are:
0 Charm
1 Dire Charm
2 Rigid Thinking
3 Confused
4 Beserk
5 Intoxicated
6 Poisoned
7 Diseased
8 Blind
9 Protection from Evil
10 Protection from Petrification
11 Protection from Normal Missiles
12 Armor
13 Held
14 Asleep
15 Shield
16 Protection from Fire
17 Bless
18 Chant
19 Free Action
20 Barkskin
21 Strength
22 Heroism
23 Spell Invulnerability
24 Protection from Acid
25 Protection from Cold
26 Resist Fire/Cold
27 Protection from Electricity
28 Protection from Magic
29 Protection from Undead
30 Protection from Poison
31 Non-detectable
32 Good luck
33 Bad luck
34 Silenced
35 Cursed
36 Panic
37 -
38 Level Up(?)
39 Hasted
40 Resist Fear
41 Slowed
42 Bard Song
43 Nauseous
44 Fatigued
45 Held
46 Spirit Armor
47 Hopelessness
48 Courage
49 Friends
50 Hope
51 Greater Malison
52 Spirit Armor
53 Dominated
54 Feebleminded
55 Tenser's Transformation
56 Mind Blank
57 Aid
58 Master Thievery
59 Draw Upon Holy Might
60 Miscast Magic
61 Strength of One
62 Prayer
63 Defensive Harmony
64 Recitation
65 Champion's Strength
66 Chaotic Commands
67 Righteous Wrath of the Faithful
68 Phased
69 Pain
70 Impervious Sanctity of Mind
71 Petrified
72 Iron Body
73 Animal Rage
74 Exaltation
75 Cat's Grace
76 Blood Rage
77 Ballad of Three Heroes
78 Tale of Curran Strongheart
79 Tymora's Melody
80 Song of Kaudies
81 Siren's Yearning
82 War Chant of Sith
83 Deaf
84 Armor of Faith

Creates the item specified by the resource key in the slot specified by the Slot field, on the targeted creature(s).
Known values for Slot (from SLOTS.IDS) are:

• 0 ⟶ AMULET
• 1 ⟶ ARMOR
• 2 ⟶ BELT
• 3 ⟶ BOOTS
• 4 ⟶ CLOAK
• 5 ⟶ GAUNTLETS
• 6 ⟶ HELMET
• 7 ⟶ RING_LEFT
• 8 ⟶ RING_RIGHT
• 9 ⟶ SHIELD
• 10 ⟶ FIST
• 11 ⟶ AMMO
• 15 ⟶ MISC
• 35 ⟶ WEAPON
• 11 ⟶ AMMO0
• 12 ⟶ AMMO1
• 13 ⟶ AMMO2
• 14 ⟶ AMMO3
• 15 ⟶ MISC0
• 16 ⟶ MISC1
• 17 ⟶ MISC2
• 18 ⟶ MISC3
• 19 ⟶ MISC4
• 20 ⟶ MISC5
• 21 ⟶ MISC6
• 22 ⟶ MISC7
• 23 ⟶ MISC8
• 24 ⟶ MISC9
• 25 ⟶ MISC10
• 26 ⟶ MISC11
• 27 ⟶ MISC12
• 28 ⟶ MISC13
• 29 ⟶ MISC14
• 30 ⟶ MISC15
• 31 ⟶ MISC16
• 32 ⟶ MISC17
• 33 ⟶ MISC18
• 34 ⟶ MISC19 – Magical Weapon slot
• 35 ⟶ WEAPON0
• 36 ⟶ WEAPON1
• 37 ⟶ WEAPON2
• 38 ⟶ WEAPON3

Disabled the button specified by the 'Button' field.
Known values for 'Button' are:
0 Stealth Button
1 Thieving Skill Button
2 Spell Select Button
3 First Quick Spell Button
4 Second Quick Spell Button
5 Third Quick Spell Button
6 N/A
7 Talk Button
8 Use Item Button
9 First Quick Item Button
11 Second Quick Item Button
12 Third Quick Item Button
13 Innate Ability Button

Disables spell casting abilities of the targeted creature(s), in the style specified by the Spell Type field.
Known values for Spell Type are:

• 0 ⟶ Disables wizard spells with location=spell (also applied by polymorph)
• 1 ⟶ Disables priest spells with location=spell (also applied by polymorph)
• 2 ⟶ Disables all innate spells (really any type except wizard/priest), regardless of location
• 3 ⟶ Disables only "magical" spells (those lacking Ignore dead/wild magic), regardless of type or location (EEs)

Known values for Show message? are:

• 0 ⟶ Yes
• 1 ⟶ No

Casts the spell specified by the resource key at the level specified by the Casting Level field, in the style specified by the Type field. A Casting Level of 0 casts at the level of the casting creature.
Known values for Type are:

• 0 ⟶ Normal Casting at specified level (0 for caster level), non-interruptible
• 1 ⟶ Cast Instantly at caster level
• 2 ⟶ Cast Instantly at specified level (EE-only)

The targeted creature(s) learn the spell specified by the resource key.

Casts the spell specified by the resource key, at the level specified by the Casting Level field, in the style specified by the Type field. A Casting Level of 0 casts at the level of the casting creature.
Known values for Type are:

• 0 ⟶ Normal Casting
• 1 ⟶ Cast Instantly (ignore Casting Level)

The use of this effect is unknown, and effect of its parameters are undefined.

Applies the find traps effect to the targeted creature(s).

Replaces the targeted creature(s) with creature specified by the resource key, in the style specified by the Type value.
Known values for Type are:

• 0 ⟶ Remove targeted creature via opcode #168
• 1 ⟶ Kill targeted creature via opcode #13*p2=8 (Chunking death)
• 2 ⟶ Kill targeted creature via opcode #13*p2=4 (Normal death)
• 3 ⟶ No effect on targeted creature – New creature (specified by the resource key) is spawned at target's location

Plays the movie specified by the resource key.
Known movies are:
AVALANCH
BISLOGO
CREDITS
INTRO
RETURN
SCRY
TOWER
TSRLOGO

Applies the sanctuary effect to the targeted creature(s).

This effect sets stat #63 (SANCTUARY) to 1.

Applies the entangle visual effect to the targeted creature(s). Does not actually prevent the target from moving.

This effect sets stat #62 (ENTANGLE) to 1.

Applies the minor globe visual effect to the targeted creature(s).

This effect sets stat #64 (MINORGLOBE) to 1.

Applies the protection from normal missiles cylinder visual effect to the targeted creature(s).

This effect sets stat #65 (SHIELDGLOBE) to 1.

Applies the web effect to the targeted creature(s). The affected creature becomes immobile and its AI scripts stop running.

This effect sets stats #58 (HELD) and #67 (WEB) to 1. It also sets the STATE_HELPLESS flag.

Applies the grease visual effect to the targeted creature(s). Does not actually affect the target's movement rate.

This effect sets stat #66 (GREASE) to 1.

Applies the mirror image effect to the targeted creature(s), creating a number of images equal to the Amount value. Sets STATE_MIRRORIMAGE to true.

Removes the sanctuary effect from the targeted creature(s).

Removes the horror effect from the targeted creature(s).
This effect ignores durations attributed to it.

Removes the paralysis effect (opcode #109 and opcode #175) from the targeted creature(s).

Applies the free action effect to the targeted creature(s), restoring the creatures movement rate to its default value if the current movement rate value is below the default for the animation type.
Also check out the EE description here.

Clears the drunkeness stat (as modified by opcode #94).

Applies the pause effect to the targeted creature(s).
In particular:

• Their inventory is still access-able.
• They are still select-able, and can be issued orders (for instance, activating modal abilities), though not all actions can be taken.
• It does not interrupt/end modal abilities the creature is currently using.
• They are not "helpless", an attack roll is still required to hit them.
• Their scripts stop running.

This effect sets CasterHold to 1.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Resistance = Resistance + 'Statistic Modifier' value
1 Flat Value Modifier -> Resistance = 'Statistic Modifier' value
2 Percentage Modifier -> Resistance = (Resistance * 'Statistic Modifier' value) / 100

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
• 2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

Moves the targeted creature(s) to area ".ARE" (a non-existent area). Also known as Script: Destroy Self.

This deletes non-global creatures from the game (most common usage).

For Global Creatures:

• This effect removes the creature from the player's party (if they were in it).
• The effect will keep the creature out of the party and any other Area for its duration, but does not re-instate the creature once it expires.
• They can still be recovered through script actions once the effect expires.

Prevents the icon specified by the 'Icon' field from being displayed.
Known values for 'Icon' are:
0 Charm
1 Dire Charm
2 Rigid Thinking
3 Confused
4 Beserk
5 Intoxicated
6 Poisoned
7 Diseased
8 Blind
9 Protection from Evil
10 Protection from Petrification
11 Protection from Normal Missiles
12 Armor
13 Held
14 Asleep
15 Shield
16 Protection from Fire
17 Bless
18 Chant
19 Free Action
20 Barkskin
21 Strength
22 Heroism
23 Spell Invulnerability
24 Protection from Acid
25 Protection from Cold
26 Resist Fire/Cold
27 Protection from Electricity
28 Protection from Magic
29 Protection from Undead
30 Protection from Poison
31 Non-detectable
32 Good luck
33 Bad luck
34 Silenced
35 Cursed
36 Panic
37 -
38 Level Up(?)
39 Hasted
40 Resist Fear
41 Slowed
42 Bard Song
43 Nauseous
44 Fatigued
45 Held
46 Spirit Armor
47 Hopelessness
48 Courage
49 Friends
50 Hope
51 Greater Malison
52 Spirit Armor
53 Dominated
54 Feebleminded
55 Tenser's Transformation
56 Mind Blank
57 Aid
58 Master Thievery
59 Draw Upon Holy Might
60 Miscast Magic
61 Strength of One
62 Prayer
63 Defensive Harmony
64 Recitation
65 Champion's Strength
66 Chaotic Commands
67 Righteous Wrath of the Faithful
68 Phased
69 Pain
70 Impervious Sanctity of Mind
71 Petrified
72 Iron Body
73 Animal Rage
74 Exaltation
75 Cat's Grace
76 Blood Rage
77 Ballad of Three Heroes
78 Tale of Curran Strongheart
79 Tymora's Melody
80 Song of Kaudies
81 Siren's Yearning
82 War Chant of Sith
83 Deaf
84 Armor of Faith

Plays the damage animation specified by the Animation field.
It just plays a visual effect, like a far more limited version of opcode #215, and is always instantaneous.
Known values for Animation are:

• 0 ⟶ Blood (behind)
  • (EEs) Doesn't display any animation.
• 1 ⟶ "BLOODS.BAM" Blood (small)
• 2 ⟶ "BLOODM.BAM" Blood (medium)
• 3 ⟶ "BLOODL.BAM" Blood (large)
• 4 ⟶ "SPFIRIMP.BAM" Fire 1
• 5 ⟶ "SPFIRIMP.BAM" Fire 2
• 6 ⟶ "SPFIRIMP.BAM" Fire 2
• 7 ⟶ "SPSHKIMP.BAM" Electricity 1
• 8 ⟶ "SPSHKIMP.BAM" Electricity 2
• 9 ⟶ "SPSHKIMP.BAM" Electricity 3

Gives the SPL specified by the resource key to the targeted creature(s).

This opcode has no effect.

Modifies the Poison Resistance of the target creature(s) to the value specified by Statistic Modifier.

The effect modifies RESISTPOISON.
Also known as "Stat: Set Poison Resistance".

Plays the sound effect specified by the resource key.

Applies a yellow fade in graphic effect to the targeted creature(s), and shows the Hold icon, if the targeted creature(s) match the value specified by the 'IDS Entry' field, in the specified 'IDS File'.
Known values for 'IDS File' are:
2 EA.ids
3 General.ids
4 Race.ids
5 Class.ids
6 Specific.ids
7 Gender.ids
8 Align.ids

(As opcode #126, but unaffected by Free Action).
Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
The engine allows values for Statistic Modifier from 0 (immobile) to 255 (instantaneous), though behaviour is only consistent in the range 0 – 30.
Known values for Type are:

• 0 ⟶ Cumulative Modifier: Movement = Movement + 'Statistic Modifier' value
• 1 ⟶ Flat Value Modifier: Movement = 'Statistic Modifier' value
• 2 ⟶ Non-stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100
• 5 ⟶ Multiplicative Stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100 (EE only)

Applies the EFF file specified by the resource key to the targeted creature(s), if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File.
Known values for IDS File are:

• 2 ⟶ EA.IDS
• 3 ⟶ GENERAL.IDS
• 4 ⟶ RACE.IDS
• 5 ⟶ CLASS.IDS
• 6 ⟶ SPECIFIC.IDS
• 7 ⟶ GENDER.IDS
• 8 ⟶ ALIGN.IDS

Alters the targeted creature(s) THAC0 against the creature type specified by the 'IDS Entry' field in the specified 'IDS File'.
The actual modifier value is placed in the Parameter 3 field in an external effect.
Known values for 'IDS File' are:
2 Object.ids
3 General.ids
4 Race.ids
5 Class.ids
6 Specific.ids
7 Gender.ids
8 Align.ids

Alters the targeted creature(s) damage against the creature type specified by the 'IDS Entry' field in the specified 'IDS File'. The actual modifier value is placed in the Parameter 3 field in an external effect - dice values are ignored.
Known values for 'IDS File' are:
2 Object.ids
3 General.ids
4 Race.ids
5 Class.ids
6 Specific.ids
7 Gender.ids
8 Align.ids

The targeted creatures(s) cannot use the item specified by the resource key. The strref specified by the String Reference field is displayed when an attempt to use the item is made.

The targeted creature(s) cannot use the item type specified by the 'Type' field. The strref specified by the 'String Reference' field is displayed when at attempt to use such an item is made.
Known values of 'Type' are:
0 Generic
1 Amulet
2 Armor
3 Belt
4 Boots
5 Bow Ammo
6 Gloves
7 Helmet
8 Key
9 Potion
10 Ring
11 Scroll
12 Shield
13 Spell
14 Sling Ammo
15 Bows
16 Dagger
17 Mace
18 Sling
19 Small Sword
20 Large Sword
21 Warhammer
22 Morningstar
23 Flail
24 Thrown
25 Axe
26 Staff
27 Crossbow
28 Fist
29 Spear
30 Halberd
31 Crossbow Ammo
32 Cloak
33 Gold
34 Gem
35 Wand

Applies an effect when the specified item is equipped.

Applies the EFF file specified by the resource key to the targeted creature(s) when an ITM of the item type specified by the Type field is equipped.

Allows creatures to be placed in impassable areas, based on the value of the Jump field.
Known values for Jump are:

• 0 ⟶ Do Jump from impassable areas
• 1+ ⟶ Don't Jump from impassable areas

Applies a yellow fade in graphic effect to the targeted creature(s), and shows the 'Held' icon, if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File. The affected creature becomes immobile and its AI scripts stop running.
This effect is not removed by opcode #162.
Known values for IDS File are:

• 2 ⟶ EA.IDS
• 3 ⟶ GENERAL.IDS
• 4 ⟶ RACE.IDS
• 5 ⟶ CLASS.IDS
• 6 ⟶ SPECIFIC.IDS
• 7 ⟶ GENDER.IDS
• 8 ⟶ ALIGN.IDS
• 9 ⟶ KIT.IDS (EE only)

This effect sets HELD to 1. It also sets the STATE_HELPLESS flag.

Marks the targetted creature(s) as travelling to the area specified by the resource key. The creature appears in the specified area after a delay (specified by the Delay field), with the orientation specified by the Orientation field.
In particular:

• Global Creatures ignore the delay.
• If the creature is already in the specified area, it will ignore the delay.
• Non-global creatures currently in a different area than specified will use the delay.
• Delay is measured in ¹⁄₃₀ seconds, (½ tick), 600 = 20 seconds.
• On non-EE games, the creature appears at the point specified by the Target Point fields (external EFF files only).
  • On EE games, target(s) appear at Caster's Coordinates in new area (it does not seem to be possible to override through EFFs).
• Creature is moved to the new area (instantly) and flagged Moving Between Areas until their delay expires (if it's used). It won't be active until the delay expires (it's hidden, cannot be affected by Area-effect, doesn't occupy space). It can still be targeted by the various Everyone targeting modes in the new area while it's still inactive, but similar to maze/imprisonment, effects won't trigger (including poison and similar) on them until they become active.

This effect stores a local variable, specified by the 'variable' field. This effect can only be used in an external effect (ie. an eff file).

While ON, the creature displays string STRREF_FEEDBACK_AURA_CLEANSED (EE games only) whenever they begin to cast a spell before their aura would normally clear (i.e. more than once/round). Does NOT affect item usage, only spellcasting.
Set the Stat Value field to any non-zero value if you want no time needed between spells.

The effect modifies AURACLEANSING to Stat Value.

Alters the Casting Time of spells by the value specified by the Speed Modifier field. This effect is cummulative.
This effect sets MENTALSPEED to Speed Modifier. Known value for Type are:

• 0 ⟶ Increment by Speed Modifier
  • Positive values decrease the casting time, negative values increase the casting time.
• 1 ⟶ Set casting time of every spell to Speed Modifier
  • Negative values set casting time to 0
• 2 ⟶ Set casting time of spells with casting time higher than Speed Modifier to Speed Modifier
  • Other spells are unaffected.

Alters the weapon's attack speed by the value specified by the Speed Modifier field. This effect is not cumulative. Attack speed ranges from 0 (good) to 10 (bad). This effect acts as a bonus, so a high Speed Modifier is good.
This effect sets PHYSICALSPEED to Speed Modifier.

Applies the value specified by the 'Modifier' field as a bonus to casting spell levels, of a type specified by the 'Type' field.
Known values for 'Type' are:
0 Mage
1 Cleric

Crashes if used by Player1, else displays 'Only the Protagonist may cast Find Familiar'

Allows invisible creatures to be attacked (via scripts) and makes it possible to target improved invisible creatures with spells.

The effect modifies SEEINVISIBLE to Stat Value.

This opcode has no effect.

The use of this effect is unknown, and effect of its parameters are undefined.

The use of this effect is unknown, and effect of its parameters are undefined.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

The creature type specified by the 'Type' field becomes immune to effects from the spell, item or external EFF specified by the resource key. It does so by comparing the effect source to the filename of spell or item, or the Parent Resource name for external EFF files.

Known values for 'Type' are:
0 Default
1 Undead
2 Not Undead
3 Fire Using/Dwelling
4 Not Fire Using/Dwelling
5 Humanoid
6 Not Humanoid
7 Animal
8 Not Animal
9 Elemental
10 Not Elemental
11 Fungus
12 Not Fungus
13 Huge Creature
14 Not Huge Creature
15 Elf
16 Not Elf
17 Umber Hulk
18 Not Umber Hulk
19 Half-Elf
20 Not Half-Elf
21 Humanoid or Animal
22 Not Humanoid or Animal
23 Blind
24 Not Blind
25 Cold Using/Dwelling
26 Not Cold Using/Dwelling
27 Golem
28 Not Golem
29 Minotaur
30 Not Minotaur
31 Undead or Fungus
32 Not Undead or Fungus
33 Good
34 Not Good
35 Neutral
36 Not Neutral
37 Evil
38 Not Evil
39 Paladin
40 Not Paladin
41 Same Moral Alignment as Source
42 Not Same Moral Alignment as Source
43 Source
44 Not Source
45 Water Using/Dwelling
46 Not Water Using/Dwelling
47 Breathing
48 Not Breathing
49 Allies
50 Not Allies
51 Enemies
52 Not Enemies
53 Fire or Cold Using/Dwelling
54 Not Fire or Cold Using/Dwelling
55 Unnatural
56 Not Unnatural
57 Male
58 Not Male
59 Lawful
60 Not Lawful
61 Chaotic
62 Not Chaotic
63 Evasion Check (Thief)
64 Orc
65 Not Orc
66 Deaf
67 Not Deaf
68 Summoned Creature
69 Not Summoned Creature
70 Mind Flayer
71 Not Mind Flayer
72 Silenced
73 Not Silenced
74 Intelligence < 'Value'
75 Intelligence > 'Value'
76 Intelligence <= 'Value'
77 Intelligence >= 'Value'
78 Bard Skald
79 Not Bard Skald
80 Near Enemies
81 Not Near Enemies
82 Drow
83 Not Drow
84 Gray Dwarf
85 Not Gray Dwarf
86 Daytime
87 Not Daytime
88 Outdoor
89 Not Outdoor
90 Keg
91 Not Keg
92 Outsider
93 Not Outsider

This opcode has no effect.

The targeted creature(s) HP value will not drop below the value specified by the Minimum Value field.
This effect sets MINHITPOINTS to Minimum Value.

This opcode has no effect.

Applies the stun effect to the targeted creature(s), if the targeted creature(s) has less than 90 HP.
The duration of the effect is:

• 1 to 29 HP ⟶ stunned for 4d4 rounds
• 30 to 59 HP ⟶ stunned for 2d4 rounds
• 60 to 89 HP ⟶ stunned for 1d4 rounds

More specifically, it functions by applying opcode #45.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect. Also known as "Secondary Cast List".

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

Gives the targeted creature(s) a number of protections from physical attacks, as specified by the 'Amount' field.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

This opcode has no effect.

Alters the colour of the targeted creature(s).
Set the 'RGB Colour' parameter to the colour value you want to use with the second byte being the Red portion (0-255), the third byte the Green portion (0-255), and the fourth byte being the Blue portion (0-255).

Plays the graphic animation specified by the 'Type' field.
Known values for 'Type' are:
0 None
1 Abjuration
2 Alteration
3 Invocation
4 Necromancy
5 Conjuration
6 Enchantment
7 Illusion
8 Divination
9 Armor
10 Spirit Armor
11 Ghost Armor
12 Strength
13 Confusion
14 Nothing
15 Death Spell
16 Disintegrate
17 Power Word Silence
18 Power Word Stun
19 Finger of Death
20 Mordenkainen's Sword
21 Monster Summoning I
22 Monster Summoning II
23 Monster Summoning III
24 Monster Summoning IV
25 Monster Summoning V
26 Monster Summoning VI
27 Monster Summoning VII
28 Nothing
29 Nothing
30 Nothing
31 Bless
32 Curse
33 Prayer
34 Recitation
35 Cure Light Wounds
36 Cure Moderate Wounds
37 Cure Serious Wounds
38 Cure Critical wounds
39 Heal
40 Animal Summoning I
41 Animal Summoning II
42 Animal Summoning III
43 Slow Poison
44 Neutralize Poison
45 Call Lightning
46 Static Charge
47 Remove Paralysis
48 Free Action
49 Miscast Magic
50 Strength of One
51 Champion's Strength
52 Flame Strike
53 Raise Dead
54 Resurrection
55 Chaotic Commands
56 Righteous Wrath of the Faithful
57 Sunray
58 Spike Stones
59 Dimension Door Origin
60 Dimension Door Destination
61 Cone of Cold
62 Sol's Searing Orb
63 Fire
64 Cold
65 Electricity
66 Acid
67 Paralysis
68 Malavon's Spike Swath
69 Righteous Wrath of the Faithful Ground
70 Belhifet's Death Animation
71 Portal
72 Sunscorch
73 Blade Barrier (front)
74 Blade Barrier (back)
75 Circle of Bones (front)
76 Circle of Bones (back)
77 Cause Light Wounds
78 Cause Moderate Wounds
79 Cause Serious Wounds
80 Cause Critical Wounds
81 Cause Disease
82 Poison
83 Slay Living
84 Harm
85 Destruction
86 Exaltation
87 Cloudburst
88 Mold Touch
89 Lower Resistance
90 Nothing
91 Soul Eater
92 Smashing Wave
93 Suffocate
94 Abi-Dalzim's Horrid Wilting
95 Nothing
96 Vitriolic Sphere
97 Wailing Virgin Death
98 Undead Ward
99 Wailing Virgin on Hit
100 Wylfdene's Death 1
101 Wylfdene's Death 2
102 Dragon's Death 1
103 Dragon's Death 2
104 Monster Summoning Circle
105 Animal Summoning Circle
106 Earth Summoning Circle
107 Fire Summoning Circle
108 Water Summoning Circle

Inflicts cold damage to the targeted creature(s) equal that that specified by the 'Damage' field.

The Dice values can be used to inflict varying damage amounts - eg 2d6 would do 2-12 damage (Damage type is still specified by the 'Type' value).

Creates 2D Animation for casting glow.
Known values for 'Type' are:
1 Abjuration
2 Conjuration
3 Divination
4 Enchantment
5 Illusion
6 Invokation
7 Necromancy
8 Transmutation

Inflicts cold damage to the targetted creature(s) equal that that specified by the 'Damage' field.
If the affected creature is undead (general=4) then the creature is also affected by panic.

The Dice values can be used to inflict varying damage amounts - eg 2d6 would do 2-12 damage (Damage type is still specified by the 'Type' value).

Damages the target by the value specified by the 'Damage Amount' field, with a damage type of crushing.

The Dice values can be used to inflict varying damage amounts - eg 2d6 would do 2-12 damage (Damage type is still specified by the 'Type' value).

Alters all saving throws by the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Save = Save + 'Statistic Modifier' value
1 Flat Value Modifier -> Save = 'Statistic Modifier' value
2 Percentage Modifier -> Save = (Save * 'Statistic Modifier' value) / 100

'Statistic Modifier' can be positive or negative.

Applies the slow poison effect to the targeted creature(s).

Summons a creature, in the style specified by the 'Type' field.
0 MSUMMO1 Monster summoning I
1 MSUMMO2 Monster summoning II
2 MSUMMO3 Monster summoning III
3 MSUMMO4 Monster summoning IV
4 MSUMMO5 Monster summoning V
5 MSUMMO6 Monster summoning VI
6 MSUMMO7 Monster summoning VII
7 ASUMMO1 Animal summoning I
8 ASUMMO2 Animal summoning II
9 ASUMMO3 Animal summoning III
10 GINSECT Giant insect
11 CDOOM Creeping doom
12 MSUMMOM Monster summoning VI (Malavon)

HP equal to the 'Damage' field are subtracted from creature A, and added onto creature B, in the style specified by the 'Type' field.
Known values of 'Type' are:
0 Target to Source
1 Source to Target

Overlays the animation specified by the 'Type' field over the targeted creature(s).
Known values of 'Type' are:
0 Globe of Invulnerability
1 Shroud of Flame
2 Antimagic Shell
3 Otiluke's Resilient Sphere
4 Protection from Normal Missiles
5 Cloak of Fear
6 Entropy Shield
7 Fire Aura
8 Frost Aura
9 Insect Plague
10 Storm Shield
11 Shield of Lathlander
12 Greater Shield of Lathlander
13 Seven Eyes

Summons a creature in the style specified by the 'Type' field.
Known values of 'Type' are:
0 ADEAD Default
1 ADEADL Lich

Applies the prayer effect to the targeted creature(s).
The targeted creature(s) have saving throws and thac0 modified by the value specified by the 'Modifier' field.

Applies the reverse prayer effect to the targeted creature(s).
The targeted creature(s) have saving throws and thac0 modified by the value specified by the 'Modifier' field.

Summons a creature in the style specified by the 'Type'
Known values of 'Type' are:
0 SLIZARD Lizardmen
1 STROLLS Trolls
2 SSHADOW Shadow
3 ISTALKE Invisible Stalker
4 CFELEMW Fire elemental (Wizard)
5 CEELEMW Earth elemental (Wizard)
6 CWELEMW Water elemental (Wizard)
7 CFELEMP Fire elemental (Priest)
8 CEELEMP Earth elemental (Priest)
9 CWELEMP Water elemental (Priest)
10 CEELEMM Earth elemental (Malavon)

Applies the beltyns burning blood effect to the targeted creature(s).
The affected creature(s) go bersek for the number of attack specified by the 'Strike Number' field, on a failed saving throw vs spells.

Summons a creautre in the style specified by the 'Type' field.
Known values of 'Type' are:
0 SMONSTE Shadow monsters
1 DSMONST Demi-shadow monsters
2 SHADES Shades

Applies the recitation effect to the targeted creature(s).
The targeted creature(s) have saving throws and thac0 modified by the value specified by the 'Modifier' field.

Applies the recitation effect to the targeted creature(s).
The targeted creature(s) have saving throws and thac0 modified by the value specified by the 'Modifier' field.

Inflicts damage specified by the dice values, and holds the targeted creature(s) for the duration specified by the 'Duration' field.

Inflicts damage as specified by the 'Damage' field and the dice values, and blinds the targeted creature(s).

Appears to be the same as opcode 0.
Applies the modifier value specified by the 'AC Modifier' field to the category specified by the 'Type' field.
Known values for 'Type' are:
0 All Weapons
1 Crushing
2 Missile
4 Piercing
8 Slashing
16 Base AC setting (sets the targets AC to the value specified by the 'AC Modifier' field -1. If the targets AC is already 'AC Modifier' or below, this effect will do nothing).

Removes effects from the resource specified by the resource key, in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Default
1 Equipped effects list only
2 Timed effects list only

Inflicts damage as specified by the 'Damage' field and the dice values to the targeted creature(s).
Known values for 'Type' are:
0 Fire Aura
1 Frost Aura

This effect applies Confusion to the targetted creatures(s). The Duration parameter sets how long the effect works. The effect works as an aura, affecting opponents of the originating creature. The effect is re-applied every 7 seconds. The effect does not stack, due to an applied Immunity Against Spell effect.
If called from spin994, the following target types will not be affected (due to an applied Immunity Against Spell effect on them):
Race - fungi
Race - minotaur
Race - golem
State - blind

The use of this effect is unknown, and effect of its parameters are undefined.

The Type parameter sets how the effect functions
Known values of 'Type' are:
0 Default
1 Test and set to 0

Summons a creature in the style specified by the 'Type' field.
Known values of 'Type' are:
0 Default
1 Ally to source
2 Enemy to source
3 Force summon at source
4 Summon Genie

Removes the animation of the targeted creature(s).

Gives the targeted creature(s) protection from the opcode specified by the 'Opcode' field, and blocks associated strref entries (see efftext.2da).
Known values of 'Type' are:
Opcode (0 to 296)
400 Hopelessness
404 Nausea
405 Enfeeblement
412 Control
416 Bleeding Wounds
431 Energy Drain
452 Bane
453 Power Attack
454 Expertise
455 Arterial Strike
456 Hamstring
457 Rapid Shot

The use of this effect is unknown, and effect of its parameters are undefined.

*Dont Use*
As opcode #5, affecting undead.
Known values of 'Type' are:
0 Charmed (Target neutral after effect end)
1 Charmed (Target hostile after effect end)
2 Dire charmed (Target neutral after effect end)
3 Dire charmed (Target hostile after effect end)
4 Controlled by Cleric

Activates the static charge effect, for a number of strikes specified by the 'Number' field.

Applies the cloak of fear effect to the targeted creature(s), for a number of strikes specifed by the 'Number' field.

Applies the modifier value specified by the 'Statistic Modifier' field in the style specified by the 'Type' field.
Known values for 'Type' are:
0 Cumulative Modifier -> Movement = Movement + 'Statistic Modifier' value
1 Flat Value Modifier -> Movement = 'Statistic Modifier' value
2 Percentage Modifier -> Movement = (Movement * 'Statistic Modifier' value) / 100

Removes the confusion effect from the targeted creature(s).

Gives the 'Eye of the Mind' (SPIN126) innate ability to the targeted creature(s)