Gemstone Caverns
Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.
Gemstone Caverns
: Add 
. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.Final zone distribution
1250 instancesCommanders that played this card
in tracked games-
1
Vivi Ornitier
58 decks
-
2
Kinnan, Bonder Prodigy
56 decks
-
3
Rograkh, Son of Rohgahh
43 decks
-
4
Etali, Primal Conqueror // Etali, Primal Sickness
42 decks
-
5
K'rrik, Son of Yawgmoth
41 decks
-
6
Yuriko, the Tiger's Shadow
40 decks
-
7
Lumra, Bellow of the Woods
39 decks
-
8
Sauron, the Dark Lord
38 decks
- 9 Zhulodok, Void Gorger 37 decks
-
10
Urza, Lord High Artificer
35 decks
The "good card" funnel
5185 brought · 1361 playersOnce 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.
Players who cast this card win 26% of the time (n=727) , vs 26% when it never left the library (n=3249).
When players drew this card but left it in hand, they won 32% (n=230).
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 -0.4pp; 95% confidence interval -2.5pp to +1.6pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.