Skinwing is a uncommon Artifact — Equipment card from Mirrodin Besieged (MBS), collector number 133. Current market price: $0.11 (foil $0.42), TCGplayer market prices via Scryfall.
Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped creature gets +2/+2 and has flying. Equip {6}