Hades Gauntlet Armagus

From BZPB Wiki

The Hades Gauntlet Armagus is a weapon which enhances its user's inner darkness, allowing them to form a maroon mist-like material to attack or defend with, and drain various kinds of energy from their opponent with extended contact. Generally, using the Hades Gauntlet is taboo, because of the risk of it consuming normal beings and turning them into insane monsters due to the immense dark energy.

Zev Raregroove gave this to Blackout via Barricade. Barricade apparently didn't bother to tell Blackout who gave it to him.