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Geometer's Arthropod card art
Live Play Data

Geometer's Arthropod

{G} {U} · Creature — Fractal Crab · Secrets of Strixhaven (SOS)
1%
Live Inclusion
Times Brought
299
Decks Running
118
Median Cast Turn
5.0
Drawn → Played
58%
Format

First-cast turn

n=40
3%
T1
13%
T2
10%
T3
13%
T4
23%
T5
30%
T6-9
10%
T10+
Median 5.0 P25 4 · P75 7 · max 13
On curve 15% (5 / 40 cast on T2) Cast same turn as drawn 45%

The "good card" funnel

299 brought · 110 players
Brought to game
299
Ever drawn
69
Reached battlefield
40
Still on board at game end
21

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.

≥ +2.8pp

Players who cast this card win 42% of the time (n=38) , vs 24% when it never left the library (n=198).

When players drew this card but left it in hand, they won 43% (n=28).

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 +18.4pp; 95% confidence interval +2.8pp to +34.0pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

75 instances
2.7%
Library
28.0%
Battlefield
33.3%
Graveyard
5.3%
Exile

Commanders that played this card

in tracked games
Card text
Geometer's Arthropod card

Geometer's Arthropod

{G} {U}
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.
1 / 4
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 740,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.