Wondrous Item, Artifact, Requires Attunement
This staff has five charges. Charges recharge daily. These charges can be used to use the following action:
Corpse Explosion: When a creature that is not a construct is killed, you may use a reaction to cause the corpse to explode, dealing the creature's hit dice(full levels plus CON modifier) as necrotic damage to all living creatures within 20 feet of the corpse. All creatures within 20 feet must make a Constitution saving throw. On a failure, they take full damage, on a success, half damage.