Swarmyard Massacre (BLC)

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.

Niche token generator for creature-heavy black strategies, but the conditional mass removal is too narrow and unreliable to justify the five-mana cost in most contexts. Works only in dedicated Insect/Rat/Spider/Squirrel decks where you're already heavily invested in those creature types, and even then competes with more efficient board wipes and token producers.

Bloomburrow Commander — Rare