Pola Ruyen

+3: Put a curse counter on target permanent. Its controller gets an emblem with "Permanents you control with curse counters are Wastes."
-6: For each opponent, exile target permanent with a curse counter on it. Then, for each opponent, put a curse counter on target permanent.
-12: Exile all permanents with curse counters. Destroy the rest. Then put all permanents exiled by Pola Ruyen onto the battlefield under your control.