Illusion changes the overall appearance of the Pokémon to that of the one at the back of the roster. It will imitate everything about that Pokémon, including the type of Pokéball is was captured in, species, shininess (If any), and name of the Pokémon it is appearing as, the only thing not replicated is it's Level. However this ability is only on an aesthetic level, as stats, typing, etc is not copied.
Illusion will be broken when hit by either a physical or special attack, but remains intact if damage is dealt by Life Orb, Weather conditions, status ailments and Entry hazards. It is not not effected if Substitute is in play.
Illusion has no effect in the overworld.
Pokémon with Ability
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