
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.
Swarmyard Massacre has 2 printings, first in Bloomburrow Commander (2024). EDHREC ranks it #2,258 among Commander cards. It appears most in Chatterfang, Squirrel General decks (17,861 on EDHREC). 1 public deck on TCG runs it. It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.