Wobbuffet

Wobbuffet is a Psychic-type Pokémon that first appeared in Pokémon Gold and Silver. It will always attempt to endure attacks and subsequently counter them, though attacking its tail leads to direct retaliation. In Super Smash Bros. Melee and Super Smash Bros. Brawl, it can be spawned from a Poké Ball and uses Counter during the battle, though it doesn't attack directly; it instead recoils due to being attacked. The stronger the attack, the faster Wobbuffet will wobble, and while it wobbles, both the summoner and their opponents will take reciprocal damage.