Cavern of Souls
Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.
Cavern of Souls
: Add 
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: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.Final zone distribution
1656 instancesCommanders that played this card
in tracked games-
1
The Ur-Dragon
165 decks
-
2
Krenko, Mob Boss
96 decks
-
3
Edgar Markov
89 decks
-
4
Giada, Font of Hope
86 decks
-
5
The First Sliver
85 decks
-
6
Pantlaza, Sun-Favored
77 decks
-
7
Gishath, Sun's Avatar
69 decks
- 8 Zhulodok, Void Gorger 59 decks
-
9
Kaalia of the Vast
56 decks
-
10
Ulalek, Fused Atrocity
55 decks
The "good card" funnel
7355 brought · 2020 playersOnce cast, 95% 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 27% of the time (n=1008) , vs 26% when it never left the library (n=4153).
When players drew this card but left it in hand, they won 30% (n=175).
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 +1.5pp; 95% confidence interval -0.2pp to +3.2pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.