"Guillotine"

Guillotine is a razor sharp sword once owned by the famed pirate of the 13th era Valafar Donigon, who aspired to be the greatest swordsman in the world. He didn't know the sword was forged useing the peel of the Suji Suji no Mi. In time the sword came into the posession of 5th Sentinel, Jacob Juracule. Mihawks Great Great Grandson. With his potentioal for haki he was able to unlock it's powers.