Trafalgar D. Water Law

Trafalgar Law is a pirate captain and doctor. He is one of eleven pirates who have been referred to as "The Eleven Supernovas" on Sabaody Archipelago whose bounties are higher than  100,000,000 when the Straw Hats arrive in the place. Not much is currently known about him other than the fact that he appears to be very laidback. As for his weapon, he carries a katana with a hilt decorated with crosses from the opening to the bottom