Izolore, Realmshifter

+2: Two target players each exchange control of a random permanent.
-4: You control a random players next turn. If that is you, flip a coin. If heads, you control target players next turn instead.
-8: Shuffle Izolore into your library. Start a subgame. The winner of the subgame gains control of 3 permanents, then each other player sacrifices 3.