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 pioneer, Legal in future, Legal in modern, Legal in commander, Legal in oathbreaker, Legal in alchemy, Legal in penny, Legal in gladiator, Legal in standard, Legal in vintage, Legal in historic, Legal in timeless, Legal in legacy, Legal in standardbrawl, Legal in duel, Legal in brawl Price: $0.19 Foil price: $0.25