Shigure

Shigure is a servant of Mukuro, he and Hiei have a past together. Shigure is the demon that implanted the Jagan in Hiei's head. Shigure uses a hoola-hoop type sword which he can throw at an opponent, or hoola-hoop as a defense, he can recall it to himself like a boomerang. It can cut through just about anything. He is also pierced in more places than you can count.