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
290 instancesCommanders that played this card
in tracked games-
1
Vivi Ornitier
19 decks
-
2
Etali, Primal Conqueror // Etali, Primal Sickness
18 decks
-
3
Kinnan, Bonder Prodigy
17 decks
-
4
Yuriko, the Tiger's Shadow
15 decks
-
5
Sauron, the Dark Lord
14 decks
- 6 Zhulodok, Void Gorger 13 decks
-
7
Rograkh, Son of Rohgahh
12 decks
-
8
Krenko, Mob Boss
11 decks
-
9
K'rrik, Son of Yawgmoth
11 decks
-
10
Y'shtola, Night's Blessed
11 decks
The "good card" funnel
1252 brought · 421 playersOnce 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.
Players who cast this card win 23% of the time (n=136) , vs 27% when it never left the library (n=673).
When players drew this card but left it in hand, they won 33% (n=57).
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 -3.3pp; 95% confidence interval -7.9pp to +1.3pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.