Difference between revisions of "When Struck"

Revision as of 14:24, 14 February 2026

Diablo II	Notation	Basic	Class	Skill	Item	Ally	Quest	Area	Monster	Tale

All Skills	Random Class Skills	Fire Skills	Skill bonus	Oskill	Aura Equipped	Charges	Charged suffix
Chance to Cast	On Attack	On Striking	When Struck	When You Die	Kill an Enemy	Level-up

Chance to Cast When Struck gives a percentage chance to use a skill whenever the equipping player character, mercenary or pet is hit by a melee attack (excluding charging Claw Vipers and Reanimated Horde), a missile attack applying weapon or monster damage, persistent traps or fires, or exploding barrels.

It is not applied by missiles which only apply their own damage or skill damage. Most of the applicable missile attacks are intuitive (the user is hit by a visible arrow, bolt, dart, javelin, quill or throwing weapon), but others are less obvious:
- Tainted lightning orbs
- Skeleton Mage bolts
- Lightning Spire bolts
- Willowisp lightning bolts
- Demon Imp fire bolts
- Claw Viper missiles
- Succubus and Stygian Fury bolts
It is not applied by returned damage or death explosions of any kind.
Skills are cast in a variety of ways:

User	User location	User to attacker	Attacker location
Fade Venom Cyclone Armor Bone Armor Blaze Enchant Teleport Chilling Armor Delirium	Slow Missiles Howl Poison Nova Static Field Frost Nova Nova	Twister Tornado Bone Spirit Holy Bolt Charged Bolt Chain Lightning Glacial Spike	Mind Blast Curses Bone Prison Fist of the Heavens Fire Wall Meteor Blizzard Hydra

Amazon skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Slow Missiles	5	4	Peace body armor	29	No

Assassin skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Fade	8	5	Spirit Ward Ward	68	No
	11	6	Last Wish axe/sword/hammer	65	Yes (LoD only)
	15	5	Treachery body armor	43	No
Mind Blast	14	6	Delirium helm	51	No
Venom	18	20	Dragon body armor/shield	61	Yes (LoD only)

Barbarian skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Howl	1	3	Myth body armor	25	No

Druid skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Cyclone Armor	15	5	Rain body armor	49	No
Twister	1	7	Zephyr missile weapon	21	No
Tornado	5	4	Stormchaser Scutum	35	No

Necromancer skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Amplify Damage	14	35	Brand missile weapon	65	Yes (LoD only)
Bone Armor	10	15	Bone body armor	47	No
Dim Vision	3	6	Darksight Helm Basinet	38	No
Dim Vision	3	15	Gloom body armor	47	No
Weaken	5	4	Blackoak Shield Luna	61	No
Weaken	10	24	Obsession staff	69	No (D2R only)
Iron Maiden	1	5	The Gavel of Pain Martel de Fer	45	No
	2	6	Corpsemourn Ornate Plate	55	No
	2	10	Saracen's Chance Amulet	47	No
	6	8	Steel Carapace Shadow Plate	66	No
Terror	1	15	Ars Al'Diabolos Blasphemous Grimoire	80
	3	15	Boneflame Succubus Skull	72	No
	13	14	Delirium helm	51	No
Confuse	15	10	Dream helm/shield	65	Yes (LoD only)
Bone Prison	2	10	Arm of King Leoric Tomb Wand	36	No
Lower Resist	7	10	Medusa's Gaze Aegis	76	No
Lower Resist	12	20	Plague sword/claw/dagger	67	No (D2R only)
Poison Nova	5	5	Radament's Sphere Ancient Shield	50	No
	6	9	Pus Spitter Siege Crossbow	36	No
	10	10	Carrion Wind Ring	60	No
	15	15	Andariel's Visage Demonhead	83	Yes (LoD only)
Bone Spirit	10	5	Arm of King Leoric Tomb Wand	36	No

Paladin skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Holy Bolt	12-20	50	Boneslayer Blade Gothic Axe ¹	42	No
Fist of the Heavens	7	5	Thundergod's Vigor War Belt	47	No

¹ As detailed on the Chance to Cast page, the skill level is not chosen at random from the specified range.

Sorceress skill

When Struck suffixes can spawn on magic, rare and crafted items.
When Struck suffixes are in the same affix group as on Attack, on Striking and charged suffixes.

Suffix	Level	% Chance	Source	Min Rlvl	Min Alvl
of Charged Bolt	3	10	Armor Amulet Ring	4	6
	4	12		12	16
	5	14		19	26
of Frost Shield	3	5	Armor Amulet	9	12
of Nova Shield	3	10	Armor Ring	13	18
	4	12		21	28
	5	14		28	38
of Hydra Shield	3	10	Amulet	30	40

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Charged Bolt	3	25	Stormspike Stiletto	41	No
	4	12	Immortal King's Forge War Gauntlets	30	No
	5	15	Stormrider Tabar	41	No
	20	2	Stormspire Giant Thresher	70	No
Static Field	3	10	Hwanin's Refuge Tigulated Mail	30	No
Static Field	5	25	Cow King's Leathers (Full)	25	No
Frost Nova	4	5	Hit Power item	13	No
	5	10	Coldkill Hatchet	36	No
	9	5	Tiamat's Rebuke Dragon Shield	38	No
Blaze	8	5	Infernostride Demonhide Boots	29	No
Blaze	15	5	Enlightenment body armor	45	No
Nova	3	25	Dark Adherent Dusk Shroud	49	No
Nova	7	5	Tiamat's Rebuke Dragon Shield	38	No
Fire Wall	17	25	Pride polearm	67	Yes (LoD only)
Fire Wall	17	25	Pride spear (D2R only)	67	No (D2R only)
Enchant	5	5	Immortal King's Soul Cage Sacred Armor	76	No
Chain Lightning	5	5	Stormspire Giant Thresher	70	No
	5	12	Naj's Circlet Circlet	28	No
	5	18	Cow King's Hide Studded Leather	18	No
Teleport	1	25	The Oculus Swirling Crystal	42	No
Glacial Spike	3	10	M'avina's Embrace Kraken Shell	70	No
Meteor	13-20	2	The Rising Sun Amulet ²	65	No
Blizzard	6	4	Stormchaser Scutum	35	No
	7-20	5	Snowclash Battle Belt ²	42	No
	28	15	Ars Dul'Mephistos Occult Tome	42	No
Chilling Armor	15	20	Fortitude body armor/weapon	59	Yes (LoD only)
Hydra	6	3	Tiamat's Rebuke Dragon Shield	38	No

² As detailed on the Chance to Cast page, the skill level is not chosen at random from the specified range.

Warlock skill

Skill	Level	% Chance	Source	Min Rlvl
Ring of Fire	10	5	Vigilance shield	53
Ring of Fire	25	5	Measured Wrath Burnt Text	52
Sigil: Lethargy	10	5	Coven helm	51
Psychic Ward	10	2	Authority body armor	29
Sigil: Death	1	13	Ritual dagger	57

Other skill

Skill	Level	% Chance	Source	Min Rlvl	Ladder
Delirium	50	1	Delirium helm	51	No

Reference

onderduiker, Chance to Cast and curse tests (D2 Technical)

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