Current paper retail
Card Kingdom$2.99
Cardmarket€1.97
ManaPool$1.40
TCGplayer$1.65
Buylist (dealers pay)
Card Kingdom$1.00
MTGO (Cardhoarder)
retail$0.03 tix
90-day paper retail (USD)
3 providers
Cloud Key
RareMV 3
Artifact
As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost less to cast.
Card capabilities
ArtifactCost reduction
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Other printings
9 other English printingsEarliest 2007-05-04Newest 2026-09-02Cheapest priced $2.76 in BRR
Rulings (2)
wotc19 Mar 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.
wotc19 Mar 2021
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.
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Ranked by shared capabilities, colour identity, mana value and type — never by strategic judgement.
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