Live Play Data

Geometer's Arthropod

· Creature — Fractal Crab · Secrets of Strixhaven (SOS)

Live Inclusion

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Times Brought

367

Decks Running

142

Median Cast Turn

Drawn → Played

58%

Format

Multiplayer 1v1

First-cast turn

n=47

15%

40%

T6-9

11%

T10+

Median 6 P25 4 · P75 8 · max 13

On curve 15% (7 / 47 cast on T2) Cast same turn as drawn 36%

The "good card" funnel

367 brought · 134 players

Brought to game

367

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 53% 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.

≥ +3.2pp

Players who cast this card win 41% of the time (n=46) , vs 24% when it never left the library (n=252).

When players drew this card but left it in hand, they won 36% (n=33).

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 +17.3pp; 95% confidence interval +3.2pp to +31.4pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

88 instances

2.3%

Library

28.4%

Battlefield

31.8%

Graveyard

6.8%

Exile

Commanders that played this card

in tracked games

Card text

Geometer's Arthropod

Creature — Fractal Crab

Whenever you cast a spell with {X}

in its mana cost, look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

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Secrets of Strixhaven (SOS) · Rare · Illustrated by Joe Slucher

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 780,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.