Case of the Burning Masks [Murders at Karlov Manor]

Set: Murders at Karlov Manor Type: Enchantment — Case Rarity: Uncommon Cost: {1}{R}{R} When this Case enters the battlefield, it deals 3 damage to target creature an opponent controls.To solve — Three or more sources you controlled dealt damage this turn. (If unsolved, solve at the beginning of your end step.)Solved — Sacrifice this Case: Exile the top three cards of your library. Choose one of them. You may play that card this turn.