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  6. Altar of Dementia (Schematic)

Magic · The Brothers' War: Retro Frame Artifacts · #66 · Mythic

Altar of Dementia (Schematic)

Magic card price for Altar of Dementia (Schematic): $43.32 market, from $40.67 at the cheapest listing, Foil printing, updated Oct 18, 2026. Full price history since Feb 8, 2024 below.

Market price · Foil · Oct 18, 2026
$43.32
+0.3% this week · +0.8% in 30 days
Buy on eBay →
1 day+0.3%
7 days+0.3%
30 days+0.8%
90 days+7.2%
1 year+94.7%
All time+272.5%

Sellers right now

$40.67lowest listing$389.52highest
Market price$43.32
Mid listing$48.00
Direct$42.47
30-day avg$42.92

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$43.32
Cardmarket$42.89 €38.11

EUR converted at 1.1253 (ECB reference rate). Shipping and condition not included.

One year

$22.2552-week low$43.3252-week high
In the range100%
All-time low$11.63
All-time high$43.32
First priceFeb 8, 2024
Foil · market priceCardmarket (EU, in USD)
$9.73$21.98$34.24$46.49
$43.32
Feb 2024Dec 2024Nov 2025Oct 2026
TCGplayer · via tcgcsv · Cardmarket · via MTGJSONtcgrate.com

Price story

Altar of Dementia (Schematic) (Foil) entered our records in February 2024 at $11.63 and stands at $43.32 today, up 272% over that time. Over the past twelve months it moved +94.7%, trading between $22.25 and $43.32. The current price is near the top of that range. This is the highest market price in our records for this card. The cheapest listing right now is $40.67, and the 30-day average market price is $42.92.

Printings

PrintingMarketLowHigh7d
Foil$43.32$40.67$389.52+0.3%
Normal$24.59$19.74$142.99+0.9%

The card in play

Type line
Artifact
Rules text

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Flavor

"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

Other printings of Altar of Dementia

5 more · $21.01 – $687.50
All printings
Altar of Dementia (Schematic) (Serial Numbered) (66), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Altar of Dementia (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #66 $687.50 Altar of Dementia (276), Tempest — Magic card price −0.2% 7d Altar of Dementia Tempest · #276 $26.66 Altar of Dementia (3), The Brothers' War: Retro Frame Artifacts — Magic card price −1.3% 7d Altar of Dementia The Brothers' War: Retro Frame Artifacts · #3 $23.58 Altar of Dementia (196), Conspiracy — Magic card price −3.8% 7d Altar of Dementia Conspiracy · #196 $22.56 Altar of Dementia (218), Modern Horizons — Magic card price +1.6% 7d Altar of Dementia Modern Horizons · #218 $21.01

Also in The Brothers' War: Retro Frame Artifacts

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Full set
Ashnod's Altar (Schematic) (Serial Numbered) (67), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Ashnod's Altar (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #67 $1,199.99 Altar of Dementia (Schematic) (Serial Numbered) (66), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Altar of Dementia (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #66 $687.50 Mishra's Bauble (Schematic) (Serial Numbered) (97), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Mishra's Bauble (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #97 $650.00 Caged Sun (Schematic) (Serial Numbered) (72), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Caged Sun (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #72 $645.00 Helm of the Host (Schematic) (Serial Numbered) (82), The Brothers' War: Retro Frame Artifacts — Magic card price 0.0% 7d Helm of the Host (Schematic) (Serial Numbered) The Brothers' War: Retro Frame Artifacts · #82 $637.00