Purifier

Purifier (浄化装置 joukasouchi) is a sword wielded by Shiro Morimoto, touted as the Sword of Pure Goodness (純善の剣 Junzen no Ken), due to it's ability to purify corrupted or infected things, reducing them to a state of purity. It is typically used to cure diseases and rid someone of Hollowfication.

Creation
The sword has it's origins from when Dyan and Shiro met with the Taiki. After he was purified by Sister, Dyan was temporarily granted the purification powers of the now dead Taiki, which he proceeded to use on Shiro in order to restore the Shinigami who had been reduced to crazed, Hollowfied-like being of evil, to his normal Shinigami state. The "purification" energy remained within Shiro and Dyan, and Shiro discovered it, and extracted the energy to seal it within a single katana, creating the "Purifier", as he so aptly named it.

Abilities
The sword is unique, as it is not a blade meant for cutting, instead, it is a blade of healing. When it is used to cut an enemy, it will rid of the afflicted target of such things as diseases and Hollowfication, and be used to cure other "impurities" such as an impaired mental state, returning someone who was mentally broken to their normal, functioning state.