The Balrog, Durin's Bane is a rare Legendary Creature — Avatar Demon card from Tales of Middle-earth Promos (PLTR), collector number 195s. Current market price: — (foil $4.61), TCGplayer market prices via Scryfall.
This spell costs {1} less to cast for each permanent sacrificed this turn. Haste The Balrog can't be blocked except by legendary creatures. When The Balrog dies, destroy target artifact or creature an opponent controls.