Creeping Corrosion — Mirrodin Besieged #78, Rare, non-foil. Ungraded, Near Mint to Lightly Played: front and back both clean, sharp corners, no creases — photos are the exact card. Green’s artifact board-wipe: 'Destroy all artifacts.' A Commander sideboard staple that ends artifact decks’ whole afternoon for four mana. Ships in a penny sleeve + toploader.