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Swarmyard Massacre

· Sorcery · Bloomburrow Commander (BLC)

Decklist Inclusion

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Times Brought

381

Decks Running

181

In Decks

1179

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Swarmyard Massacre

Sorcery

Create two 1/1 green Squirrel creature tokens. Then each creature that isn't an Insect, Rat, Spider, or Squirrel gets -1/-1 until end of turn for each creature you control that's an Insect, Rat, Spider, or Squirrel.

Bloomburrow Commander (BLC) · Rare · Illustrated by Michael Phillippi

Final zone distribution

89 instances

1.1%

Battlefield

62.9%

Graveyard

5.6%

Exile

30.3%

Hand

Commanders that played this card

in tracked games

1 Hazel of the Rootbloom 43 decks
2 Chatterfang, Squirrel General 35 decks
3 Vren, the Relentless 15 decks
4 Marrow-Gnawer 14 decks
5 Shelob, Child of Ungoliant 13 decks
6 Camellia, the Seedmiser 12 decks
7 Rat King, Verminister 9 decks
8 Cosmic Spider-Man 8 decks
9 Wick, the Whorled Mind 8 decks
10 Grist, the Hunger Tide 4 decks

The "good card" funnel

381 brought · 165 players

Brought to game

381

Ever drawn

Reached battlefield

Still on board at game end

≥ -14.6pp

Players who cast this card win 25% of the time (n=43) , vs 26% when it never left the library (n=255).

When players drew this card but left it in hand, they won 28% (n=24) — about the same as leaving it in the library. Those players survived long enough to draw it, so the gap above is about the card resolving, not just about surviving.

Observed gap -1.8pp; 95% confidence interval -14.6pp to +10.9pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=45

11%

53%

T6-9

29%

T10+

Median 7 P25 6 · P75 11 · max 15

On curve 18% (5 / 45 cast on T5) Cast same turn as drawn 40%

45 of 100 times cast 45%

Full analysis unlocks as more games are tracked. Stats refresh nightly.

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Basic play counts appear once a card reaches 100 tracked games; the full deep-dive page needs a larger, more diverse sample (at least 300 tracked games played by 10 or more different pilots, with no single pilot over 40 percent of the copies). 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 660,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.