Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Human Assassin Warrior it shall be swift

it shall be swift

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Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Human Assassin Warrior it shall be swiftSet: 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*