Monk's Fist is a common Artifact — Equipment card from Final Fantasy (FIN), collector number 265. Current market price: $0.15 (foil $0.25), TCGplayer market prices via Scryfall.
Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature gets +1/+0 and is a Monk in addition to its other types. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)