Oblivion Magnum

The Oblivion Magnum is a Pet summoning item that is sold by the Scavenger after the Abaddon, the Source of the Affliction has been defeated. It summons a Bullet Kin to follow the player. The Bullet Kin is immune to damage from enemies and despawns upon player death.

Trivia

 * The item's name is a reference to the Magnum from Enter the Gungeon.
 * The pet's appearance, name, and movement are all reference to the Bullet Kin, a common enemy from Enter the Gungeon.