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As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.
Abilities, attacks, weakness & resistance
Other cards from The Brothers' War Retro Artifacts
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Cloud Key (BRR-75 foil) is an artifact from The Brothers' War Retro Artifacts set. As it enters the battlefield you choose one card type — artifact, creature, enchantment, instant, or sorcery — and spells you cast of that chosen type cost {1} less to cast. The cost reduction applies only to generic mana in those spells' costs and interacts with alternative costs and cost increases as a reduction applied after those are calculated.
Catalog pricing data as of 5 May 2026, 06:00
