
When this creature enters, it deals X damage to target creature or planeswalker an opponent controls, where X is the number of creature cards in your graveyard.
Ossuary Rats has 1 printing, first in Jumpstart 2022 (2022). EDHREC ranks it #21,017 among Commander cards. It appears most in Ashcoat of the Shadow Swarm decks (306 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.