
+2: Untap each enchanted permanent you control.
−1: Create a white Aura enchantment token named Mask attached to another target permanent. The token has enchant permanent and umbra armor.
−7: Mill seven cards. Return all non-Aura enchantment cards from your graveyard to the battlefield, then do the same for Aura cards.
Estrid, the Masked can be your commander.
Estrid, the Masked has 4 printings, first in Commander 2018 (2018). EDHREC ranks it #11,616 among Commander cards. 1 public deck on TCG runs it. It has 18 official rulings.
Cards that show up in the same decks on EDHREC.