Promise of Power is a rare Sorcery card from Commander 2014 (C14), collector number 157. Current market price: $0.50, TCGplayer market prices via Scryfall.
Choose one — • You draw five cards and you lose 5 life. • Create an X/X black Demon creature token with flying, where X is the number of cards in your hand. Entwine {4} (Choose both if you pay the entwine cost.)