Live Play Data

Biomass Mutation

· Instant · Secrets of Strixhaven Commander (SOC)

Live Inclusion

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Times Brought

831

Decks Running

388

Median Cast Turn

9.0

Drawn → Played

45%

Format

Multiplayer 1v1

First-cast turn

n=84

52%

T6-9

36%

T10+

Median 9.0 P25 7 · P75 10 · max 18

Cast same turn as drawn 20%

The "good card" funnel

831 brought · 368 players

Brought to game

831

Ever drawn

186

Reached battlefield

Still on board at game end

≥ +6.7pp

Players who cast this card win 33% of the time (n=81) , vs 17% when it never left the library (n=555).

When players drew this card but left it in hand, they won 28% (n=98).

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 +16.4pp; 95% confidence interval +6.7pp to +26.1pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

227 instances

1.8%

Library

7.9%

Battlefield

45.8%

Graveyard

5.7%

Exile

Commanders that played this card

in tracked games

Card text

Biomass Mutation

Instant

Creatures you control have base power and toughness X/X until end of turn.

Secrets of Strixhaven Commander (SOC) · Rare · Illustrated by Dan Murayama Scott

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.