Quoted By:
>Pyukumuku has a new Ability, Innards Out, which no other Pokémon has had before. With the Innards Out Ability, when this Pokémon faints, it will be able to deal one last bit of damage to its opponent, equal to the amount of HP it had left before it received the final blow.
So if Pyukumuku is OHKO'd, it would work almost like a destiny bond against Pokémon with similar HP. If it ends up having a strong evolution I see it being pretty useful in competitive.
