Bloodthirsty Blade is a uncommon Artifact — Equipment card from Commander 2021 (C21), collector number 235. Current market price: $0.66, TCGplayer market prices via Scryfall.
Equipped creature gets +2/+0 and is goaded. (It attacks each combat if able and attacks a player other than you if able.) {1}: Attach this Equipment to target creature an opponent controls. Activate only as a sorcery.