Live Play Data

Underground River

Land · Star Trek Commander (TRC)

26%

Live Inclusion

Buy on TCGplayer

Times Brought

8108

Decks Running

3723

Median Cast Turn

Drawn → Played

71%

Format

Multiplayer 1v1

First-cast turn

n=1543

13%

17%

14%

12%

10%

28%

T6-9

T10+

Median 4 P25 2 · P75 7 · max 20

Cast same turn as drawn 50%

The "good card" funnel

8116 brought · 2614 players

Brought to game

8116

Ever drawn

2177

Reached battlefield

1543

Still on board at game end

1398

Once cast, 91% 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.

≥ +1.9pp

Players who cast this card win 27% of the time (n=1364) , vs 22% when it never left the library (n=4753).

When players drew this card but left it in hand, they won 29% (n=566).

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 +4.3pp; 95% confidence interval +1.9pp to +6.8pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

2484 instances

4.5%

Library

56.3%

Battlefield

19.4%

Graveyard

5.6%

Exile

Commanders that played this card

in tracked games

1 Y'shtola, Night's Blessed 394 decks
2 Jace, Multiverse Architect 322 decks
3 Sauron, the Dark Lord 216 decks
4 Ulalek, Fused Atrocity 119 decks
5 Sauron, Lord of the Rings 117 decks
6 Yuriko, the Tiger's Shadow 78 decks
7 Kefka, Court Mage // Kefka, Ruler of Ruin 69 decks
8 Temmet, Naktamun's Will 67 decks
9 Aminatou, Veil Piercer 64 decks
10 Jin Sakai, Ghost of Tsushima 58 decks

Card text

Underground River

Land

: Add

: Add

. This land deals 1 damage to you.

Star Trek Commander (TRC) · Rare · Illustrated by Piotr Dura

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 760,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.