Kor Halberd is a common Artifact — Equipment card from March of the Machine (MOM), collector number 27. Current market price: $0.27 (foil $0.32), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+1 and has vigilance. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)