Illusionist is an trait that is unique to Diablo III. It was thought to have been removed in Beta Patch 6 in response to the abuse of farming Wretched Mothers for XP bonuses, but it was later added back.
The Illusionist trait imbues a creature with the ability to create clones of itself. The clones have less health than their parent, are not able to use their parent's traits, and only deal a fraction of their damage. Some secondary abilities are not mitigated such as pools of fire left by fireballs from Blazing Guardians, or the gas clouds from a dead Accursed.
This trait can occur only for monsters equal to or greater than level 26.
|Diablo III Monster Traits|
|Diablo III||Arcane Enchanted • Avenger • Desecrator • Electrified • Extra Health • Fast • Fire Chains • Frozen • Health Link • Horde • Illusionist • Invulnerable Minions • Jailer • Knockback • Missile Dampening • Molten • Mortar • Nightmarish • Plagued • Shielding • Teleporter • Vampiric • Vortex • Waller|