Illusions



Illusions are imperfect copies of another unit. To enemies they look exactly the same as the original unit (with the exception of Wall of Replica), but to allies the illusions are very distinct from the original one (illusions have a different color than the original unit, usually blue). Illusions run equally fast and attack almost as fast but their attacks usually deal much less damage and they usually take much more damage. With the exception of Haunt and Reflection whose illusions will only attack one unit, illusions are controllable by whichever player they are created by. There are two types of illusion abilities: Mirror Image type and Single Target type.

Mirror Image
Mirror Image type illusions are created at the caster's location and are mixed up with the hero so that enemies will not know which is which. These skills also provide a short period of invulnerability and dispel most buffs and some disables. The following abilities are Mirror Image type:



Single Target
Single Target type illusions are spawned at a point, usually as part of another ability. There is no invulnerability or buff removal provided when casting these abilities. The following abilities are Single Target type:



Passive abilities Illusions can use

 * Attack range changes
 * Attack Speed bonuses from Yasha, Sange and Yasha and Manta Style
 * Attack Speed buff from
 * Attribute Bonus (Strength, Agility and Intelligence)
 * Critical Strike (it should be noted that the red number is before the illusion reduction)
 * Evasion
 * Feedback (only works on melee illusions)
 * Health or Mana
 * Magic Resistance from abilities, and from base Magic Resistance
 * Monkey King Bar's True Strike
 * Movement Speed bonus
 * Quelling Blade's bonus damage to creeps
 * Radiance's Burn Damage (the damage does not stack with other Radiance auras)
 * True Sight


 * Anti-Mage's Mana Break
 * Axe's Counter Helix
 * Bristleback's Warpath
 * Broodmother's Incapacitating Bite
 * Centaur Warrunner's Return
 * Dragon Knight's Elder Dragon Form abilities
 * Enchantress' Untouchable
 * Luna's Moon Glaive
 * Lone Druid's Synergy
 * Medusa's Split Shot (only when Split Shot is active before the illusions spawns)
 * Meepo's Geostrike
 * Night Stalker's Hunter in the Night (movement speed bonus only)
 * Omniknight's Degen Aura
 * Razor's Unstable Current
 * Riki's Permanent Invisibility
 * Spectre's Desolate
 * Troll Warlord's Fervor
 * Venomancer's Poison Sting
 * Viper's Corrosive Skin
 * Visage's Gravekeeper's Cloak

Passive abilities Illusions cannot use

 * Raw Damage, Armor or Attack Speed increase (Yasha is an exception to this since it was based on the Endurance Aura in DotA)
 * Raw Health or Mana regeneration
 * Lifesteal (regardless of what the animation may show)
 * Most Unique attack modifiers, with the exception of Feedback on melee illusions and others mentioned above
 * Cleave
 * Bash, including Monkey King Bar (regardless of what the animation may show)
 * Damage Block (Vanguard, Poor Man's Shield, etc)
 * Magic Resistance from items (Cloak, Hood of Defiance, or Pipe of Insight)
 * Greater and Lesser Maim from items like Sange and Yasha, Sange, and Heaven's Halberd


 * Sniper's Headshot
 * Riki's Backstab
 * Slark's Essence Shift

Auras on Illusions
In most cases, illusions will bestow the auras that the original hero has. However, with the exception of auras that increase Attack Speed or Movement Speed, they usually will not benefit from them.

Note
Illusions can benefit from the buffs that modify hero's stats or attack range for the buff duration, such as Unholy Strength,, etc.