Sword of Extermination

Sword of Extermination (の) is a cursed tool possessed by the most powerful shikigami of the Ten Shadows Technique; Eight-Handled Sword Divergent Sila Divine General Mahoraga. It's a specialized blade for cursed spirits that is enveloped in positive energy.

Description
The Sword of Extermination is a long, double-edged blade coated in positive energy, similar to reverse cursed energy. This makes the Sword of Extermination a natural enemy to cursed spirits. Its positive energy can easily compromise bodies composed entirely of cursed energy. The overall advantage gained by the user is comparable to the power of a special grade cursed tool.

Usage
Mahoraga has the Sword of Extermination crudely attached to its right wrist using several layers of bandage wrappings. The shikigami generally engages in offense using close-quarters combat, making the Sword of Extermination its primary weapon in battle.

Mahoraga opened its battle with Sukuna by swinging the Sword of Extermination down at him. Sukuna is an incarnated cursed spirit, meaning he's occupying a human vessel. Due to this, the positive energy emitted by the blade didn't destroy his body. Even so, Mahoraga's strength forced Sukuna to dodge before the blade broke through his defense.

Sukuna recognized the Sword of Extermination for its unique abilities and admitted that he would've died had he been a normal cursed spirit. After adapting to Sukuna's slashing-based cursed technique, Mahoraga was able to deflect one of his attacks using the blade.