Name: Promising Stairs Cost: 2U CMC: 7 Color: U CID: U Type: Enchantment -- Room Rules Text: At the beginning of your upkeep, surveil 1. You win the game if there are eight or more different names among unlocked doors of Rooms you control. (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.) [This is half of the split card Central Elevator // Promising Stairs.] Set/Rarity: Duskmourn: House of Horror Promos rare, Duskmourn: House of Horror rare Set Code: PDSK-R, DSK-R Legality: Legal in historic, Legal in vintage, Legal in brawl, Legal in gladiator, Legal in standard, Legal in legacy, Legal in alchemy, Legal in future, Legal in timeless, Legal in commander, Legal in standardbrawl, Legal in penny, Legal in pioneer, Legal in duel, Legal in oathbreaker, Legal in modern Price: $0.28 Foil price: $0.25