Weapon Name: Tsukai
Description:- Spoiler:
Is bigger and a little more curved
Weapon Special Abilities: It's handle can be bended at will. Also it has much bigger cutting power even than the Wazamono Grade Swords (The same grade as Roronoa's most precious blade) has and can even match Wazamono Grade Swords(The same grade what Mihawk's black blade is) . It will never rust (Even with the Rust Rust no Mi (Or something like that)). The blade is cursed and if someone expect Karin wears it they will die through the blade of Tsukai. (Will just bend it's handle and cut's off the thief's head)
History: It was made by an evil blacksmith. Then later it was given to Karin at young age and she has it even now.