Live Play Data

Caves of Koilos

Land · Reality Fracture Commander (FRC)

30%

Live Inclusion

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Times Brought

10052

Decks Running

4313

Median Cast Turn

Drawn → Played

76%

Format

Multiplayer 1v1

First-cast turn

n=1879

11%

16%

13%

11%

29%

T6-9

T10+

Median 4 P25 2 · P75 7 · max 19

Cast same turn as drawn 45%

The "good card" funnel

10059 brought · 2985 players

Brought to game

10059

Ever drawn

2486

Reached battlefield

1879

Still on board at game end

1737

Once cast, 92% 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.

≥ +2.3pp

Players who cast this card win 30% of the time (n=1792) , vs 25% when it never left the library (n=6676).

When players drew this card but left it in hand, they won 33% (n=581).

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 +4.5pp; 95% confidence interval +2.3pp to +6.7pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

2779 instances

3.6%

Library

62.5%

Battlefield

14.6%

Graveyard

4.9%

Exile

Commanders that played this card

in tracked games

1 Jace, Multiverse Architect 394 decks
2 Killian, Decisive Mentor 185 decks
3 Edgar Markov 167 decks
4 Y'shtola, Night's Blessed 124 decks
5 Ulalek, Fused Atrocity 119 decks
6 Kaalia of the Vast 106 decks
7 Betor, Ancestor's Voice 99 decks
8 Queen Marchesa 89 decks
9 Zurgo Stormrender 81 decks
10 Teysa Karlov 80 decks

Card text

Caves of Koilos

Land

: Add

: Add

. This land deals 1 damage to you.

Reality Fracture Commander (FRC) · Rare · Illustrated by Julian Kok Joon Wen

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 780,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.