
Mistform Ultimus is every creature type (even if this card isn't on the battlefield).
Mistform Ultimus has 2 printings, first in Legions (2003). EDHREC ranks it #24,426 among Commander cards. It appears most in The First Doctor decks (2 on EDHREC). It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.