+2 Mace is a common Artifact — Equipment card from Adventures in the Forgotten Realms (AFR), collector number 1. Current market price: $0.20 (foil $0.20), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+2. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)