wotc
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.
MTG · Card
◇ Catalog #75
Cloud Key
brr·#75·rare·foil
Illus. Trevor Hairsine
—
in vault
—
for trade
—
wishlisted
Nov '22
3 yr ago
Value
$8.53+$1 (+7.3%)
30 days high $7.55 · low $7.00
Volatility · moderate
TIX0.24 tixEUR€6.96USD$7.53
Where to buy / sell
Search links · prices vary by venue
Buy this card
Played in EDH
EDHrec rank #642 · Common include
Variants
Gameplay
Artifact
As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost {1} less to cast.
"A key only unlocks a door. Its wielder must choose whether to cross the threshold."
—*Hurkyl's Metaphysics, vol. II*
Legalities
tlrlegal
duellegal
brawllegal
pennylegal
PreDH
Rulings · 2
wotc
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.
Context
Last observed at $7.53, up from $7.02 thirty days ago. Over the trailing 90 days the price moved between $0.24 and $7.55 across 31 observations. Headline volatility reads moderate. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
Last observed on Scryfall 18 hours ago at $7.53.
This printing is one of 3 catalogued treatments from BRR — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
This card belongs to *The Brothers' War Retro Artifacts* (released November 2022).
Card #75 in The Brothers' War Retro Artifacts.
Rarity tier: rare. Rares occupy the bottom-of-pack rare slot in standard boosters.
Card type: Artifact. Mana cost: {3} (3 converted).
Legal in Modern, Legacy, Vintage, Commander, Brawl, and Historic.
EDHrec ranks this card #642 in Commander, putting it in the common-include tier of the format's playable pool.
Illustrated by Trevor Hairsine. Rarix tracks 94 other cards credited to this artist across the catalog — browse the full gallery to see the body of work.
Search across TCGplayer, eBay sold, Cardmarket EU, and Star City from the marketplace deeplinks above to compare live listings.
Notes
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Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Trevor Hairsine
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.