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The Key to the Vault card art
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The Key to the Vault

{1} {U} · Legendary Artifact — Equipment · Outlaws of Thunder Junction (OTJ)
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Times Brought
231
Decks Running
121
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
The Key to the Vault card

The Key to the Vault

{1} {U}
Legendary Artifact — Equipment
Whenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. You may exile a nonland card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost. Equip {2}{U}
Outlaws of Thunder Junction (OTJ) · Rare · Illustrated by Leon Tukker

Final zone distribution

45 instances
2.2%
Library
57.8%
Battlefield
11.1%
Graveyard
6.7%
Exile

Commanders that played this card

in tracked games

The "good card" funnel

232 brought · 115 players
Brought to game
232
Ever drawn
41
Reached battlefield
31
Still on board at game end
26

Once cast, 84% 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.

≥ -11.3pp

Players who cast this card win 26% of the time (n=28) , vs 27% when it never left the library (n=143).

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 -1.6pp; 95% confidence interval -11.3pp to +8.2pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=31
6%
T1
6%
T2
13%
T3
3%
T4
19%
T5
45%
T6-9
6%
T10+
Median 6 P25 3 · P75 7 · max 12
On curve 13% (2 / 31 cast on T2) Cast same turn as drawn 40%

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 690,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.