Characters who’s main gimmick/power is an active weakness or hindrance, but are still ridiculously powerful with it

Regigigas (Pokémon) has the ability Slow Start, until 6 turns have passed it’s stats are all lowered drastically. Probably to reference it being tired after moving the continents of the Pokémon world

Taro Sakamoto (Sakamoto Days) has grown out of shape after being out the assassin game for years. But is still incredibly capable with his chubby physique, with enough movement he’ll quickly go back to his slim physique though