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Cloud Key

Mana cost

Mana value3TypeArtifact Color identity

Colorless RarityRare SetEdge of Eternities Commander (EOC) ArtistMatt Stewart Price€2.34 · $1.88

Cloud Key

Artifact

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost

less to cast.

The advent of cloudsculpting ended the use of mechanical locks in Illvoi society.

Legality

CommanderLegalStandardNot legalPioneerNot legalModernLegalLegacyLegalVintageLegalPauperNot legalBrawlLegalOathbreakerLegalHistoricLegalTimelessLegalPenny DreadfulLegal

Rulings

2021-03-19
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.

2021-03-19
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.