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Caves of Koilos

Land · Secrets of Strixhaven Commander (SOC)

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Times Brought

1529

Decks Running

766

In Decks

—

Decklist Inclusion

—

Format

Multiplayer 1v1

Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.

Card text

Caves of Koilos

Land

: Add

: Add

. This land deals 1 damage to you.

Secrets of Strixhaven Commander (SOC) · Rare · Illustrated by Julian Kok Joon Wen

Final zone distribution

341 instances

1.8%

Library

72.4%

Battlefield

9.7%

Graveyard

4.1%

Exile

Commanders that played this card

in tracked games

1 Edgar Markov 45 decks
2 Killian, Decisive Mentor 36 decks
3 Ulalek, Fused Atrocity 35 decks
4 Temmet, Naktamun's Will 31 decks
5 Y'shtola, Night's Blessed 30 decks
6 Kaalia of the Vast 26 decks
7 Isshin, Two Heavens as One 18 decks
8 Betor, Ancestor's Voice 17 decks
9 Zurgo Stormrender 17 decks
10 Mr. House, President and CEO 16 decks

The "good card" funnel

1530 brought · 614 players

Brought to game

1530

Ever drawn

314

Reached battlefield

255

Still on board at game end

247

Once cast, 97% 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.

≥ -0.8pp

Players who cast this card win 28% of the time (n=211) , vs 26% when it never left the library (n=916).

When players drew this card but left it in hand, they won 34% (n=50) — 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 +2.9pp; 95% confidence interval -0.8pp to +6.6pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=255

25%

12%

17%

11%

18%

T6-9

T10+

Median 3 P25 2 · P75 5 · max 17

Cast same turn as drawn 57%

2157 of 300 tracked games 99%

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 650,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.