Be'lakor, the Dark Master is a mythic Legendary Creature — Demon Noble card from Warhammer 40,000 Commander (40K), collector number 172. Current market price: — (foil $3.61), TCGplayer market prices via Scryfall.
Flying Prince of Chaos — When Be'lakor enters, you draw X cards and you lose X life, where X is the number of Demons you control. Lord of Torment — Whenever another Demon you control enters, it deals damage equal to its power to any target.