collections_bookmark Part of Duskmourn: House of Horror
Unholy Annex // Ritual Chamber card art
Live Play Data

Unholy Annex // Ritual Chamber

{2} {B} {3} {B} {B} · Enchantment — Room // Enchantment — Room · Duskmourn: House of Horror (DSK)
1%
Live Inclusion
Times Brought
337
Decks Running
162
Median Cast Turn
6.0
Drawn → Played
65%
Format

First-cast turn

n=48
2%
T1
10%
T2
13%
T3
15%
T4
6%
T5
42%
T6-9
13%
T10+
Median 6.0 P25 4 · P75 7 · max 18
On curve 81% (0 / 48 cast on T8) Cast same turn as drawn 39%

The "good card" funnel

337 brought · 153 players
Brought to game
337
Ever drawn
74
Reached battlefield
48
Still on board at game end
37

Once cast, 77% 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.

≥ -2.2pp

Players who cast this card win 38% of the time (n=43) , vs 26% when it never left the library (n=221).

When players drew this card but left it in hand, they won 45% (n=25).

Read this as correlation, not as the card's contribution. Casting a card means you lived long enough to cast it, so this gap widens with mana value across every card we track.

Observed gap +12.4pp; 95% confidence interval -2.2pp to +27.0pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

96 instances
2.1%
Library
38.5%
Battlefield
32.3%
Graveyard
4.2%
Exile

Commanders that played this card

in tracked games
Card text
Unholy Annex // Ritual Chamber card

Unholy Annex

{2} {B}
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

{3} {B} {B}
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

Frequently Asked

Why isn't there more data on this card?
Playgroup Live collects per-card gameplay data from real Commander games. Play counts appear once a card reaches 100 tracked games, and the full charts need a sample of at least 25 observed games that is not dominated by a single pilot. 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 690,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.