Killer

"Massacre Soldier" Killer is a masked pirate and subordinate of Eustass Kid. 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. He and Zoro are the only supernovas who are not captains.

Appearance
Killer is a masked man with long hair. He wears a polka dotted shirt and pants that resemble those worn by real world Native Americans. He carries around a pair of hand guards that have scythes attached to them.

Abilities and Powers
Killer using a pair of scyth bladed weapons that spin around. Combined with the agility he has so far displayed in battle he is a formidable foe.

Trivia

 * His appearance is noted bare some likeness to the Soulcalibur character Voldo. Both characters have a simulair body build, use a strange but agily fighting style and have weapons capable of spinning around.  Killer wears a mask, Voldo himself is often seen wearing a mask.  However, it is unconfirmed if Killer is based on the character.