Cloud Key (Schematic) (Serial Numbered) #75 – The Brothers' War: Retro Frame Artifacts (Rare)

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

Cloud Key (Schematic) (Serial Numbered) #75 Price

Cloud Key (Schematic) (Serial Numbered) (#75, Rare) from The Brothers' War: Retro Frame Artifacts is worth $500.00 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Foil sells for €136.60.

Near Mint · TCGplayer: $500.00
Near Mint · Cardmarket: €136.60
30-day change: 0.0%
Printings: 1

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Cloud Key (Schematic) (Serial Numbered) prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Foil	$500.00	€136.60

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: The Brothers' War: Retro Frame Artifacts
Card number: 75
Rarity: Rare
Released: November 18, 2022
Illustrator: Trevor Hairsine
Rules 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.
Flavor text: "A key only unlocks a door. Its wielder must choose whether to cross the threshold." —Hurkyl's Metaphysics, vol. II

Cloud Key (Schematic) (Serial Numbered): common questions

How much is Cloud Key (Schematic) (Serial Numbered) #75 worth?

Cloud Key (Schematic) (Serial Numbered) (#75, Rare) from The Brothers' War: Retro Frame Artifacts is worth $500.00 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Foil sells for €136.60.

What set is Cloud Key (Schematic) (Serial Numbered) from?

Cloud Key (Schematic) (Serial Numbered) is card 75 in The Brothers' War: Retro Frame Artifacts, released November 18, 2022. Its rarity is Rare. Illustrated by Trevor Hairsine.

Is Cloud Key (Schematic) (Serial Numbered) going up in price?

Over the last 30 days the Near Mint Foil price on TCGplayer moved from $500.00 (September 5, 2026) to $500.00 (October 3, 2026), a change of 0.0%. The 30-day low was $500.00 and the high $500.00.

How do I check what my Cloud Key (Schematic) (Serial Numbered) is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.