Unscythe, Killer of Kings is a rare Legendary Artifact — Equipment card from Alara Reborn (ARB), collector number 114. Current market price: $1.80 (foil $8.10), TCGplayer market prices via Scryfall.
Equipped creature gets +3/+3 and has first strike. Whenever a creature dealt damage by equipped creature this turn dies, you may exile that card. If you do, create a 2/2 black Zombie creature token. Equip {2}