Magic: The Gathering · The Brothers' War: Retro Frame Artifacts

Cloud Key

French name: Clef de nuage (Schematic) (Serial Numbered)

75RareSchematicDouble Rainbow FoilSerial Numbered

Cloud Key (Schematic) (Serial Numbered) (The Brothers' War: Retro Frame Artifacts 75) has a market price of US$500.00 as of Nov 8, 2026.

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Price guide

The market price on TCGplayer, in US dollars: a guide, not an offer.

Market price

FoilUS$500.00Low US$480.95

As of Nov 8, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.

Card details

Type: Artifact
Mana cost: {3}
Artist: Trevor Hairsine

Card text

As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost 1 less to cast. A numbered series of 500 copies of this card was found within the The Brothers' War Collector Booster product. The number on the card you receive will vary from the number pictured in the listing unless otherwise shown in a Listing with Photo.

Flavour text

"A key only unlocks a door. Its wielder must choose whether to cross the threshold." -Hurkyl's Metaphysics, vol. II

About this card

Cloud Key (Schematic) (Serial Numbered) is card 75 in The Brothers' War: Retro Frame Artifacts, a Magic: The Gathering set released Nov 18, 2022. Rarity: Rare. Finishes: Foil. Illustrated by Trevor Hairsine. Reference market price on Nov 8, 2026: US$500.00. The Foil price did not change over the last 30 days. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.