Jace, Persistent Headache

+3: Look at target player's hand or the top five cards of their library. Exile up to three of those cards. Put the rest into their graveyard or hand.
-2: Target opponent gets an emblem with "Whenever you cast your first spell each turn, counter that spell."
-10: Search each player's library for up to four cards and exile any number of them. Create five nonlegendary copies of Jace, Persistent Headache.