Unholy Annex // Ritual Chamber

Collector number 339
rareStandard
Market Price£2.2830d change unavailable

Price data for this card starts 14 Sept 2026

Daily prices in GBP
DateMarketCardmarketCardmarket Foil
14 Sept 2026N/A£2.35£3.46
15 Sept 2026N/A£2.42£3.45
16 Sept 2026N/A£2.46£3.45
17 Sept 2026N/A£2.42£3.46
18 Sept 2026£2.43£2.43£3.57
19 Sept 2026N/A£2.51£3.57
20 Sept 2026N/A£2.45£3.57
21 Sept 2026£2.35£2.35£3.53
22 Sept 2026£2.35£2.35£3.53
23 Sept 2026£2.35£2.35£3.53
24 Sept 2026£2.26£2.26£3.53
25 Sept 2026£2.21£2.21£3.53
26 Sept 2026£2.15£2.15£3.59
27 Sept 2026£2.22£2.22£3.44
28 Sept 2026£2.24£2.24£3.49
29 Sept 2026£2.23£2.23£3.48
30 Sept 2026£2.42£2.42£3.48
1 Oct 2026£2.32£2.32£3.38
2 Oct 2026£2.42£2.42£3.37
3 Oct 2026£2.42£2.42£3.61
4 Oct 2026£2.41£2.41£3.81
5 Oct 2026£2.41£2.41£3.81
6 Oct 2026N/A£2.28£3.80

The foil version is commanding a solid premium over the regular printing at £3.80 against £2.28, representing a 1.7× multiplier—worth keeping in mind if you're stocking both versions or deciding which to pick up.

Updated Summary by Claude

No recent sales for this card.

Card Details

Unholy Annex

Enchantment — Room

Mana cost
two generic manaone black mana

At the beginning of your end step, draw a card. If you control a Demon, each opponent loses 2 life and you gain 2 life. Otherwise, you lose 2 life. (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Ritual Chamber

Enchantment — Room

Mana cost
three generic manaone black manaone black mana

When you unlock this door, create a 6/6 black Demon creature token with flying. (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

More Info

Rare double-faced Room enchantment from Magic: The Gathering's Duskmourn: House of Horror (2024). Draw cards and drain life, or unlock to create a 6/6 flying Demon token.

AI generated

Printings

Explore sets and finishes. Hover a printing for a closer look.

4

4 printings shown.

Card updated 6 Oct 2026. Prices may differ from individual listings.