Trafalgar D. Water Law

Trafalgar Law is the captain of the Heart pirates. 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.

Appearance
Law wears a shirt with a symbol that some believe saves similarity with Donquixote Doflamingo's Jolly Roger and the symbol seen at the Human Auction Grove.

Abilities and Powers
Law is a doctor whose skills have earned him the nickname of "Surgeon of Death". As for his weapon, he carries a Nodachi with a scabbard decorated with crosses from the opening to the bottom.

During an assault on the Human Auctioning House, Law revealed himself as holding a Devil Fruit. His ability allowed him to create a territory where he can replace any objects within it at will. Using this ability, Law was able to make it seem like he sliced the head off a Marine, only to replace it with a cannonball that was being fired towards him. The Marine's head on the other hand, remained alive in Law's hand and could see the cannonball floating and exploding over his body. The identity of the ability remains unknown at this time.

History
Not much is currently known about him other than the fact that he appears to be very laidback, as he was first seen sitting ontop of a crate as another pirate with a high bounty passed by, X Drake. He then asked how many did the latter slay.

Later, after Eustass Kid mentioned that he is mannerless, Law replies by flipping his middle finger up. After Monkey D. Luffy attacked one of the World Nobles, Law had a short conversation with his fellow Supernova, who was more interested in the bear in his crew than he was in any ideas of conflict. It is unknown if he is still in the auction house at this time, particularly after the usage of aura by Silvers Rayleigh to subdue everyone in there.