Magic: The Gathering · Duskmourn: House of Horror
Unholy Annex // Ritual Chamber
French name: Annexe impie // Chambre de rituel (Borderless)
Unholy Annex // Ritual Chamber (Borderless) (Duskmourn: House of Horror 339) has a market price of US$2.98 to US$4.99 as of Nov 9, 2026.
Price guide
The market price on TCGplayer, in US dollars: a guide, not an offer.
Market price
As of Nov 9, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.
Card details
- Type
- Enchantment: Room // Enchantment: Room
- Mana cost
- {2}{B} // {3}{B}{B}
- Artist
- Alexis Ziritt
Card text
(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.) Unholy Annex 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. / Ritual Chamber When you unlock this door, create a 6/6 black Demon creature token with flying.
About this card
Unholy Annex // Ritual Chamber (Borderless) is card 339 in Duskmourn: House of Horror, a Magic: The Gathering set released Sep 27, 2024. Rarity: Rare. Finishes: Normal, Foil. Illustrated by Alexis Ziritt. Reference market price on Nov 9, 2026: US$2.98 (Normal), US$4.99 (Foil). Over the last 30 days, the Normal price went up 14.6%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.
