Live Play Data

Marble Diamond

· Artifact · Commander Legends: Battle for Baldur's Gate (CLB)

Live Inclusion

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Times Brought

1698

Decks Running

826

Median Cast Turn

Drawn → Played

78%

Format

Multiplayer 1v1

First-cast turn

n=311

17%

24%

26%

T6-9

10%

T10+

Median 4 P25 2 · P75 7 · max 16

On curve 41% (76 / 311 cast on T2) Cast same turn as drawn 53%

The "good card" funnel

1705 brought · 735 players

Brought to game

1705

Ever drawn

399

Reached battlefield

311

Still on board at game end

270

Once cast, 87% 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.

≥ -4.8pp

Players who cast this card win 22% of the time (n=282) , vs 22% when it never left the library (n=1086).

When players drew this card but left it in hand, they won 19% (n=80).

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 +0.2pp; 95% confidence interval -4.8pp to +5.2pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

445 instances

2.7%

Library

60.7%

Battlefield

16.9%

Graveyard

4.3%

Exile

Commanders that played this card

in tracked games

1 Giada, Font of Hope 219 decks
2 Anti-Venom, Horrifying Healer 45 decks
3 Dack Fayden, Helping Hand 27 decks
4 Whtz, the Bibliophile 23 decks
5 Gisela, the Broken Blade 17 decks
6 Ekthi, Contaminator Priest 16 decks
7 Darien, King of Kjeldor 14 decks
8 Bruna, the Fading Light 13 decks
9 Eriette of the Charmed Apple 11 decks
10 Millicent, Restless Revenant 11 decks

Card text

Marble Diamond

Artifact

This artifact enters tapped. {T}

: Add

Commander Legends: Battle for Baldur's Gate (CLB) · Common · Illustrated by Gaboleps

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 750,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.