What happens if a genderless Pokemon uses Attract?

Question

What would happen if a hacked genderless or legendary Pokémon and used attract on a normal Pokémon ?

Answer 1

Attract fails if used by/on a genderless Pokemon.

Source: Experience

Comments

But he said "hacked", meaning something like by/on female lugia

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Genderless pokémon and legendaries Cant learn attract except if  they are  hacked !