Bound Evil

Bound Evil is a Black Blade, currently under the ownership of Brooke Shephard.

Appearance
Bound Evil is a simply designed, being a pure black katana. It's more akin to a thin piece of metal, as the sword has no hilt or scabbard. Instead, it is wrapped in bandages, which serve to restrain its immense cutting power.

Abilities
Bound Evil is a notably powerful blade, capable of easily cutting through buildings and ships alike when used by even a moderately skilled swordsman. However, the blade is also incredibly difficult to wield, not because of it being notably heavy or anything like that, but because it saps the strength of those who use. Wielding its unstrained power drains the user quicker, so Shephard often only partially unwraps the blade when using it, allowing her to much more easily use the sword in combat. The bandages seem to respond to her via thought, as they unwrap and wrap up around the blade according to her will.

History
After becoming a Black Blade through unknown means, Bound Evil eventually found its way into the hands of Brooke Shephard's father. After his passing, the sword was taking by local criminals on Shephard's home island. Eventually, she managed to steal the blade back, with the help of Seizawa.