Magic Bounce is a hidden ability found in only a few animals. It is typically found on Psychic type animals.
In Battle Use
Animals with the Magic Bounce ability reflect any status or status inflicting moves back at their opponents. The animals with the Magic Bounce ability are not affected by any of these moves.
This ability likely evolved from animals that evolved to shake off status effects easily, and instead fire them back at their opponents using their heightened Psychic powers.