Embercleave is a mythic Legendary Artifact — Equipment card from The List (PLST), collector number ELD-120. Current market price: $10.88, 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}