
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Creatures that attacked during their controller's last turn can't attack.
Halls of Mist has 1 printing, first in Ice Age (1995). EDHREC ranks it #20,464 among Commander cards. It appears most in Chisei, Heart of Oceans decks (83 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.