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Contaminated Aquifer

Land — Island Swamp · Tarkir: Dragonstorm Commander (TDC)

Decklist Inclusion

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Times Brought

436

Decks Running

216

In Decks

1271

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Contaminated Aquifer

Land — Island Swamp

(

: Add

.) This land enters tapped.

Tarkir: Dragonstorm Commander (TDC) · Common · Illustrated by Robin Olausson

Final zone distribution

142 instances

2.1%

Library

57.0%

Battlefield

18.3%

Graveyard

6.3%

Exile

Commanders that played this card

in tracked games

1 Y'shtola, Night's Blessed 101 decks
2 Teval, the Balanced Scale 47 decks
3 Fire Lord Azula 4 decks
4 Jon Irenicus, Shattered One 3 decks
5 Kefka, Court Mage // Kefka, Ruler of Ruin 3 decks
6 Aminatou, the Fateshifter 2 decks
7 Atraxa, Praetors' Voice 2 decks
8 Be'lakor, the Dark Master 2 decks
9 Captain N'ghathrod 2 decks
10 Doctor Octopus, Master Planner 2 decks

The "good card" funnel

436 brought · 204 players

Brought to game

436

Ever drawn

124

Reached battlefield

Still on board at game end

Once cast, 88% 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.

≥ -6.7pp

Players who cast this card win 24% of the time (n=85) , vs 22% when it never left the library (n=246).

When players drew this card but left it in hand, they won 23% (n=26) — about the same as leaving it in the library. Those players survived long enough to draw it, so the gap above is about the card resolving, not just about surviving.

Observed gap +2.7pp; 95% confidence interval -6.7pp to +12.1pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=92

25%

15%

30%

T6-9

11%

T10+

Median 4.0 P25 2 · P75 8 · max 16

Cast same turn as drawn 62%

92 of 100 times cast 92%

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.