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Polluted Cistern // Dim Oubliette

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

Decklist Inclusion

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Times Brought

Decks Running

In Decks

305

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Polluted Cistern

Enchantment — Room

Whenever one or more cards are put into your graveyard from your library, each opponent loses 1 life for each card type among those cards. (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.)

Dim Oubliette

Enchantment — Room

When you unlock this door, mill three cards, then return a creature card from your graveyard to the battlefield. (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 Commander (DSC) · Rare · Illustrated by Arthur Yuan

Final zone distribution

29 instances

Not enough tracked games yet to show a reliable final-zone breakdown.

Commanders that played this card

in tracked games

The "good card" funnel

92 brought · 36 players

Brought to game

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 85% 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.

≥ -18.0pp

Players who cast this card win 33% of the time (n=19) , vs 28% when it never left the library (n=49).

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 +5.3pp; 95% confidence interval -18.0pp to +28.6pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=20

15%

60%

T6-9

15%

T10+

Median 7.5 P25 6 · P75 9 · max 17

On curve 50% (2 / 20 cast on T7)

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.