Marauder's Axe is a common Artifact — Equipment card from Core Set 2019 (M19), collector number 240. Current market price: $0.05 (foil $0.13), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+0. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)