Live Play Data

Coin of Mastery

· Artifact · Teenage Mutant Ninja Turtles Eternal (TMC)

Live Inclusion

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Times Brought

303

Decks Running

144

Median Cast Turn

5.5

Drawn → Played

59%

Format

Multiplayer 1v1

First-cast turn

n=32

16%

25%

44%

T6-9

T10+

Median 5.5 P25 5 · P75 8 · max 11

On curve 25% (2 / 32 cast on T4) Cast same turn as drawn 29%

The "good card" funnel

303 brought · 133 players

Brought to game

303

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 66% 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.

≥ -10.9pp

Players who cast this card win 20% of the time (n=29) , vs 17% when it never left the library (n=208).

When players drew this card but left it in hand, they won 21% (n=20).

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 +3.1pp; 95% confidence interval -10.9pp to +17.1pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

63 instances

3.2%

Library

33.3%

Battlefield

25.4%

Graveyard

6.3%

Exile

Commanders that played this card

in tracked games

Card text

Coin of Mastery

Artifact

Each creature you control enters with an additional +1/+1 counter on it for each mana from an artifact source spent to cast it. {T}

: Create a Treasure token. (It's an artifact with " {T}

, Sacrifice this token: Add one mana of any color.")

Teenage Mutant Ninja Turtles Eternal (TMC) · Rare · Illustrated by Madeline Boni

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 670,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.