
Sacrifice this creature: Add {R}{R}.
Catalyst Elemental has 2 printings, first in Core Set 2019 (2018). EDHREC ranks it #17,923 among Commander cards. It appears most in Dargo, the Shipwrecker decks (2 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.