Smoky Lounge / Misty Salon - Duskmourn: House of Horror (DSK)

Enchantment - Room

Uncommon - Duskmourn: House of Horror (DSK)

(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.)

Smoky Lounge - 2, Red

At the beginning of your first main phase, add Red, Red. Spend this mana only to cast Room spells and unlock doors.

Misty Salon - 3, Blue

When you unlock this door, create an X/X blue Spirit creature token with flying, where X is the number of unlocked doors among Rooms you control.