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Unholy Annex // Ritual Chamber

· Enchantment — Room // Enchantment — Room · Duskmourn: House of Horror (DSK)

Decklist Inclusion

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Times Brought

172

Decks Running

In Decks

573

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Unholy Annex

Enchantment — Room

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

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.)

Duskmourn: House of Horror (DSK) · Rare · Illustrated by Matteo Bassini

Final zone distribution

49 instances

2.0%

Library

51.0%

Battlefield

28.6%

Graveyard

2.0%

Exile

Commanders that played this card

in tracked games

1 Be'lakor, the Dark Master 10 decks
2 Betor, Ancestor's Voice 8 decks
3 Marina Vendrell 8 decks
4 Ardyn, the Usurper 6 decks
5 Shelob, Child of Ungoliant 4 decks
6 Valgavoth, Harrower of Souls 4 decks
7 Kaalia of the Vast 3 decks
8 Liesa, Shroud of Dusk 3 decks
9 Valgavoth, Terror Eater 3 decks
10 Zenos yae Galvus // Shinryu, Transcendent Rival 3 decks

The "good card" funnel

172 brought · 74 players

Brought to game

172

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 76% of this card is still on the battlefield at game end. This reflects how often it survives removal, not just whether it's a permanent.

≥ -6.0pp

Players who cast this card win 38% of the time (n=32) , vs 27% when it never left the library (n=113).

Observed gap +11.7pp; 95% confidence interval -6.0pp to +29.5pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=33

12%

18%

27%

T6-9

15%

T10+

Median 4 P25 3 · P75 7 · max 18

On curve 76% (0 / 33 cast on T8) Cast same turn as drawn 35%

33 of 100 times cast 33%

Full analysis unlocks as more games are tracked. Stats refresh nightly.

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Basic play counts appear once a card reaches 100 tracked games; the full deep-dive page needs a larger, more diverse sample (at least 300 tracked games played by 10 or more different pilots, with no single pilot over 40 percent of the copies). Until this card clears those bars you're seeing only the basic counts. Stats refresh nightly.

How is Playgroup Live card data collected?

Players using Playgroup Live import their decklists before a game and log card actions as they play. Each cast, zone change, and resolution is recorded as a real game event. Stats on this site are computed from those events, not from decklist scrapes or theorycrafting. Playgroup has recorded 660,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.