![Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]](http://cryptmtg.com/cdn/shop/products/0400386a8f9d688fc9554a9e2ada4b37_c3955014-3ebe-4fb3-a4be-35cf11a8ce91_800x.jpg?v=1699028860)
![Cloud Key (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]](http://cryptmtg.com/cdn/shop/products/0400386a8f9d688fc9554a9e2ada4b37_c3955014-3ebe-4fb3-a4be-35cf11a8ce91_1024x.jpg?v=1699028860)
Description
| 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*
