Altar of Dementia (Schematic) #66 – The Brothers' War: Retro Frame Artifacts (Mythic)

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

Altar of Dementia (Schematic) #66 Price

Altar of Dementia (Schematic) (#66, Mythic) from The Brothers' War: Retro Frame Artifacts is worth $24.74 to $42.63 in Near Mint condition on TCGplayer as of October 3, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €36.04.

Near Mint · TCGplayer: $42.63
Near Mint · Cardmarket: €36.04
30-day change: 0.0%
Printings: 4

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Altar of Dementia (Schematic) prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Foil	$42.63	€36.04
Normal	$24.74	€18.23
Normal - Chinese (S)	—	—
Normal - Japanese	—	—

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: 66
Rarity: Mythic
Released: November 18, 2022
Illustrator: Isis
Type line: Artifact
Rules text: Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.
Flavor text: "My dreams have brought more visions from our master: an altar, exquisite and perfect. We must build it at once." —Writings of Artonac, priest of Gix

Altar of Dementia (Schematic): common questions

How much is Altar of Dementia (Schematic) #66 worth?

Altar of Dementia (Schematic) (#66, Mythic) from The Brothers' War: Retro Frame Artifacts is worth $24.74 to $42.63 in Near Mint condition on TCGplayer as of October 3, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €36.04.

What set is Altar of Dementia (Schematic) from?

Altar of Dementia (Schematic) is card 66 in The Brothers' War: Retro Frame Artifacts, released November 18, 2022. Its rarity is Mythic. Illustrated by Isis.

Is Altar of Dementia (Schematic) going up in price?

Over the last 30 days the Near Mint Foil price on TCGplayer moved from $42.63 (September 5, 2026) to $42.63 (October 3, 2026), a change of 0.0%. The 30-day low was $42.63 and the high $42.98.

How do I check what my Altar of Dementia (Schematic) 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.