I don't know if this is impossible, or not..
Once the ability is cast, a dummy is created, makes an illusion of the targeted unit. (Done)
When the illusion is created, I want the dummy unit to cast 'slow' on it, and also cause a spirit link between the target, and the newly created illusion...
Spell Name: Voodoo Doll
Spell Description: Creates an illusion that represents the unit that this spell is being cast upon, both the caster, and the targeted unit become invulnerable, and are paused. The illusion moves VERY slow, and damage dealt to the illusion is dealt to the targeted unit...