
+1: Create a 2/3 blue and black Nightmare creature token with "Whenever this token attacks or blocks, each opponent exiles the top two cards of their library."
−3: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand.
−7: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs.
Ashiok, Nightmare Muse has 5 printings, first in Theros Beyond Death (2020). EDHREC ranks it #7,030 among Commander cards. It appears most in Umbris, Fear Manifest decks (7,915 on EDHREC). It has 8 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.