This Weapon rivals Mayuri's
Name: Kuro Tora (Black Tiger)
Zanpakutou: A two tone Black cross Wrap Katana And the tsuba is a tiger holding the blade in its mouth
Shikai: Looks like this
http://www.kingofswords.com/images/r....jpg&width=900
But two tiger heads holding the blade
Abilities: The blade coats in white fire, to add to its destructive fighting style
Bankai: it looks like this but Giant and the white stripes are made of white fire.
Google Image Result for http://i27.photobucket.com/albums/c173/scorpio2poison/Anime/Black.jpg