Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Treasure it enters with three additional

it enters with three additional +1/+1 counters on it

Set: Secret Lair Countdown Kit Type: Sorcery Rarity: Rare Cost: {U} Look at the top three cards of your library

This mouse won't catch itself

It's nearly the size of the Null Moon

"Unskin these impure bodies

Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Treasure it enters with three additionalSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {3} As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast. "A key only unlocks a door. Its wielder must choose whether to cross the threshold." *Hurkyl's Metaphysics, vol. II*