Estrid, the Masked
{1}{G}{W}{U}
Legendary Planeswalker -- Estrid
3
[+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.
~this~ can be your commander.