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![Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]](https://cdn.shopify.com/s/files/1/0429/5858/6014/products/0400386a8f9d688fc9554a9e2ada4b37_192be4e4-da76-4315-a934-c501d13bb341.jpg?v=1709606330)
Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]
| Set: | 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.
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*