The Lady Who Knows Everything

{w}{u}{b},{t}: Choose an opponent, then name
a card. That player reveals his or her hand.
If the named card is in their hand, you may
have that player discard that card. If you do,
create a colorless Feather artifact token with "Sacrifice this artifact, scry 1."
Whenever a player chooses Monika, you may
untap The Lady Who Knows Everything.