Demon of Fate's Design is a rare Enchantment Creature — Demon card from Duskmourn: House of Horror Commander (DSC), collector number 137. Current market price: $0.35, TCGplayer market prices via Scryfall.
Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost. {2}{B}, Sacrifice another enchantment: This creature gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value.