School: Transmutation
Tier: 2
Casting Time: 1 Half Action
Range: Close (25 ft. + 5 ft./2 CL)
Target: One metal creature or metal armor object
Duration: 1 Minute per CL
Saving Throw: None
Spell Resistance: No
You unleash a rusting force on a worn piece of metal armor. The target of the spell has their armor bonus halved for as long as the spell persists. This spell may also be used on a creature made of metal to half any Armor Bonus or Natural Armor they receive to their AC. This causes no permanent damage to the armor or creature.