Dota 2 Bug Allows Players to spot the Real Hero among Illusions
Dota 2 Illusion Heroes: Ranking Illusion heroes from best to worst in Dota 2 - The SportsRush
Dota 2 patch 7.19 takes aim at The International 8's gameplay meta - The Flying Courier
BUG: Valve added timer to the Venge Scepter Illusion that matches respawn timer. If you buyback and then die, the new illusion will have incorrect timer and expire before you respawn. :
Incredible Dota 2 Bug Allows Players to Find the Real Hero Among Its Illusions
Dawnbreaker
PL can summon an infinite amount of illusions with the level 25 -7s Doppleganger talent, Octarine Core and an Arcane rune : r/DotA2