
All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone.
Cloudkill has 2 printings, first in Commander Legends: Battle for Baldur's Gate (2022). EDHREC ranks it #16,619 among Commander cards. It appears most in Iname as One decks (151 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.