Chaos

Chaos is a school of magic wielded by warlocks and demon hunters. It's a uniquely comprehensive multi-school, combining five or more of the seven damage types. It always includes, , , , and ; and can optionally include and.

Multi-school abilities benefit from bonuses that affect any of their schools, use the lowest resistance value among their schools, ignore absorption and immunity effects that apply to only some of their schools, and can be used even when one or more of their schools have been locked with an interrupt effect.

Chaos's nature guarantees that damage done will not be mitigated by any armor, resistances or school-specific effects the target might possess. However, mitigation and immunity abilities that are not school-specific (such as Ice Block and Divine Shield) as well as damage-absorption shields provide by abilities like Mastery: Blood Shield and Power Word: Shield will still absorb, mitigate or completely prevent damage from this school. Due to its comprehensive nature, it is impossible for players to be locked out of the Chaos school unless a Chaos spell itself is interrupted, in which case spells of all included schools will be locked out.

• The Havoc demon hunter talent Any Means Necessary turns any Arcane, Fire, Frost, Nature, and Shadow damage they deal into Chaos damage, this includes Demon Blades, Elysian Decree, Felblade, Fodder to the Flame, Immolation Aura, Sigil of Flame and The Hunt.

• In Warcraft III: Reign of Chaos, Chaos was an attack type that did full damage to all armor types.
• The combination of Arcane, Fire, Frost, Nature, and Shadow damage is sometimes referred to as "Chromatic damage" among players.