Card Preview

Swarmyard Massacre

· Sorcery · Bloomburrow Commander (BLC)

Buy on TCGplayer

Times Brought

704

Decks Running

348

In Decks

—

Decklist Inclusion

—

Format

Multiplayer 1v1

Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.

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

148 instances

3.4%

Library

6.1%

Battlefield

47.3%

Graveyard

2.0%

Exile

Commanders that played this card

in tracked games

1 Hazel of the Rootbloom 90 decks
2 Chatterfang, Squirrel General 82 decks
3 Vren, the Relentless 26 decks
4 Shelob, Child of Ungoliant 25 decks
5 Rat King, Verminister 22 decks
6 Cosmic Spider-Man 19 decks
7 Marrow-Gnawer 19 decks
8 Wick, the Whorled Mind 13 decks
9 Camellia, the Seedmiser 12 decks
10 Xira, the Golden Sting 6 decks

The "good card" funnel

704 brought · 325 players

Brought to game

704

Ever drawn

141

Reached battlefield

Still on board at game end

≥ +0.8pp

Players who cast this card win 27% of the time (n=64) , vs 19% when it never left the library (n=409).

When players drew this card but left it in hand, they won 17% (n=48).

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 +7.4pp; 95% confidence interval +0.8pp to +14.0pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=76

16%

63%

T6-9

14%

T10+

Median 7.0 P25 6 · P75 9 · max 14

On curve 22% (12 / 76 cast on T5) Cast same turn as drawn 30%

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 750,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.