Guts

Effect:

Whenever this Pokémon is asleep, burned, paralyzed, or poisoned, it has 1.5× its Attack. This Pokémon is not affected by the usual Attack cut from a burn. This bonus does not count as a stat modifier. This bonus is even applied when the user is frozen and thaws out with a move that thaws the user like Flare Blitz

Guts is introduced in Gen 3: