Dovin, Writer of Law

+1: Put a permanent onto the battlefield. Return that permanent to your hand at the beginning of the next end step.
-1: Detain all non-land permanents your opponents control with converted mana cost less than the number of loyalty counters on Dovin, Writer of Law.
-10: Each opponent exiles their library, then discards their hand, then shuffles all non-land permanents they control into their library.