No-Dachi is a uncommon Artifact — Equipment card from Champions of Kamigawa (CHK), collector number 264. Current market price: $0.28 (foil $1.25), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+0 and has first strike. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)