Generation Vii
Innards Out
Damages the attacker landing the finishing hit by the amount equal to its last HP.
Detailed Effect
When this Pokémon faints from an opponent's move, that opponent takes damage equal to the HP this Pokémon had remaining.
Pokémon With Innards Out
2 canonical Pokémon forms can have this Ability.
Pyukumuku 
Mega Victreebel 
