Illusions

Rune of Illusion

Illusions are non-perfect copies of another unit. To enemies they look exactly the same as the original unit, but to allies the illusions are very distinct from the original one (illusions have a different color than the original unit). Illusions run equally fast, attack almost as fast but their attacks usually deal much less damage (the only exception is Chaos Knight) and they usually take a lot more damage (the only exception is Morphling). Illusions can be created by picking up a Rune of Illusion, certain spells, or the item Manta Style.

Illusion abilities

Illusions can't use any active ability. Passive abilities that illusions can use:

• Evasion
• Critical Strike (it should be noted that the red number is before the illusion reduction)
• Feedback (only works on melee illusions)
• Movement Speed bonus
• Attribute Bonus (Strength, Agility and Intelligence)
• Health or Mana
• True Sight
• Radiance's Burn Damage (the aura still will not affect units already affected by a different Radiance aura)
• Magic Resistance from abilities, and from base Magic Resistance
• Quelling Blade's bonus damage to creeps
• Viper's Nethertoxin

Passive abilities that illusions can not use (even if the animation might show something different):

• Raw Damage, Armor or Attack Speed increase
• Health or Mana regeneration (this includes Lifesteal)
• Unique attack modifiers (except Feedback on melee illusions)
• Cleave
• Bash (it works in some rare scenarios, read more about it below), this includes the interrupt on Monkey King Bar
• Damage Block
• Magic Resistance from items (Cloak, Hood of Defiance or Khadgar's Pipe of Insight)
• Backstab (from Stealth Assassin)

Bash on Illusions

Illusions cannot bash using the effect of Skull Basher, they can still however proc Monkey King Bar's mini stun.

Auras on Illusions

Illusions will bestow any auras that the original hero has, however they usually will not benefit from this aura.

Exceptions: Illusions can benefit from auras that increase Attack Speed or Movement Speed.