Cloud Key
Market price
- Near Mint
- $7.95
- Lightly Played
- $6.56
- Moderately Played
- $5.85
- Near Mint
- $7.95
- Lightly Played
- $6.56
- Moderately Played
- $5.85
Buy
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As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost 
less to cast.
“"A key only unlocks a door. Its wielder must choose whether to cross the threshold." —*Hurkyl's Metaphysics, vol. II*”
Illustrated by Trevor Hairsine
Rulings (2)
Mar 19, 2021
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.
Mar 19, 2021
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Cloud Key's ability). The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.
