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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-12 foil) is an artifact from The Brothers' War Retro Artifacts set. As it enters the battlefield you choose a card type and spells you cast of that chosen type cost {1} less to cast. The card functions as a generic deck optimization tool, commonly included to smooth mana curves for decks that heavily favor a single card type.
Catalog pricing data as of 26 Apr 2026, 05:02
