The nipple ring's self-only spell sets Donut on fire, blocks blunt damage, and forces a twenty-second berserk attack against everything nearby.
The ability is an item-powered berserking spell with partial invulnerability. Once cast, the user ignites, becomes immune to blunt attacks, and enters an indiscriminate murderous rage.
Mordecai has seen the state in action through rage elementals and identifies its original name as Fire Berserker. Because the effect does not distinguish friends, Donut must never activate it near people she wants alive.
A small user engulfed in fire and attacking every nearby figure with uncontrolled rage.
Bitch, What? is Donut's powerful emergency berserk with extreme friendly-fire risk.