Oshawott

“It fights using the scalchop on its stomach. In response to an attack, it retaliates immediately by slashing.”

— Pokémon Black

“The scalchop on its stomach is made from the same elements as claws. It detaches the scalchop for use as a blade.”

— Pokémon White

“The scalchop on its stomach isn’t just used for battle--it can be used to break open hard berries as well.”

— Pokémon Black 2