Cramped Vents // Access Maze - Commander: Duskmourn: House of Horror - R - 17 FB01-087 you get the city's blessing

you get the city's blessing for the rest of the game

Cold Bloodlust - Promotion Cards - Promo - BT1-107

Corrida Coliseum - Kingdoms of Intrigue Pre-Release Cards - C - OP04-096

Lickitung - XY - Furious Fists - Common - 78/111

Rune Blood - Arcane Rising - Token - ARC001 // ARC075

Cramped Vents // Access Maze - Commander: Duskmourn: House of Horror - R - 17 FB01-087 you get the city's blessingType: Enchantment Room Enchantment Room English Effect: When you unlock this door, this Room deals 6 damage to target creature an opponent controls. You gain life equal to the excess damage dealt this way. (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.) Once during each of your turns, you may cast a spell from your hand by paying life equal to its mana value