Live Play Data

Biomass Mutation

· Instant · Secrets of Strixhaven Commander (SOC)

Live Inclusion

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Times Brought

649

Decks Running

313

Median Cast Turn

Drawn → Played

48%

Format

Multiplayer 1v1

First-cast turn

n=69

10%

58%

T6-9

25%

T10+

Median 8 P25 6 · P75 9 · max 18

Cast same turn as drawn 21%

The "good card" funnel

649 brought · 300 players

Brought to game

649

Ever drawn

145

Reached battlefield

Still on board at game end

≥ +7.3pp

Players who cast this card win 37% of the time (n=64) , vs 18% when it never left the library (n=400).

When players drew this card but left it in hand, they won 23% (n=69).

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 +18.5pp; 95% confidence interval +7.3pp to +29.6pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

175 instances

2.3%

Library

8.0%

Battlefield

48.0%

Graveyard

7.4%

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 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.