Embercleave is a mythic Legendary Artifact — Equipment card from Throne of Eldraine (ELD), collector number 120. Current market price: $9.48 (foil $13.19), TCGplayer market prices via Scryfall.
Flash This spell costs {1} less to cast for each attacking creature you control. When Embercleave enters, attach it to target creature you control. Equipped creature gets +1/+1 and has double strike and trample. Equip {3}