Unlock the Annex
Unholy Annex / Ritual Chamber is a duplex Room from Duskmourn that reads like a toolbox for black midrange. Unholy Annex provides a steady late game advantage by drawing you a card at the beginning of your end step while punishing or rewarding life totals based on whether you control a Demon. Ritual Chamber is the payoff half; unlocking that door drops a 6/6 flying Demon and closes the loop on any token or demon-focused deck. Both sides share Enchantment Room typing which lets you cast the half you need in the moment.
Practically minded pilots will treat this card as a two stage plan. Keep the Annex locked to stabilize card advantage and flip to Ritual Chamber when you need a big finisher that dodges ground blockers. Light Play foil finish gives collectors subtle sheen without obscuring set iconography or artist details so you can evaluate game text at a glance. Add this to Demon shells, aristocrat builds, or sideboards that want a reliable late game threat and card flow.
Card Details:
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Mana Cost – Unholy Annex {2}{B} // Ritual Chamber {3}{B}{B}
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Card Type – Enchantment
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Subtypes – Room
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Card Text / Rules Text (Printed) – 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. (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.)
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Power / Toughness – N A
