
Put a -1/-1 counter on each attacking creature.
Choking Fumes has 1 printing, first in Mirrodin Besieged (2011). EDHREC ranks it #26,061 among Commander cards. It appears most in Lord Jyscal Guado decks (5 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.