Miller, Street Sleuth

When Miller, Street Sleuth enters, reveal X
cards from the top of your library, choose and exile one of the revealed cards this turn, you may cast it
as long as it remains exiled. Put the rest in your graveyard.

Whenever you reveal a card, investigate if this is the first time this ability has resolved this turn. If it’s the second time, surveil 2. If it’s the third time, you
may return a permanent with mana value X or less
to the battlefield.