Rusting Ammunition (Moderate)

Ammunition any

Rusting ammunition is made using an ore louse's saliva and, when activated, deals damage to objects or creatures primarily made of metal. The target takes 3d8 persistent force damage for up to 5 rounds. A creature that drops to 0 Hit Points while taking this persistent damage crumbles into fine powder; its gear remains. For an object, the ammunition destroys a 5-foot cube.