Mindlock Magistrate

Flash
When Mindlock Magistrate enters the battlefield,
until end of turn, cards can't leave target player's library. (They can't be drawn, exiled, milled, cast, or
put anywhere else.)
If you would draw a card, you may instead skip
that draw and scry 2. Then if you've skipped
drawing two or more cards this turn, return
Mindlock Magistrate to its owner's hand.