Roaring Furnace // Steaming Sauna [Duskmourn: House of Horror Prerelease Promos]Set: Duskmourn: House of Horror Prerelease Promos Type: Enchantment Room Enchantment Rarity: Rare Cost: {1}{R} {3}{U}{U} (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.) Roaring Furnace When you unlock this door, this Room deals damage equal to the number of cards in your hand to target creature an opponent controls. Steaming Sauna You have no maximum hand size. At