
Whenever another permanent you control enters, each opponent mills a card.
Altar of the Brood has 5 printings, first in Khans of Tarkir (2014). EDHREC ranks it #1,419 among Commander cards. It appears most in The Wise Mothman decks (11,990 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.