Thanquol, High Grey Seer

+1: Create 2 1/1 Black Rat creature tokens named Skavenslave. They have "{t}, Sacrifice this creature: Put a loyalty counter on target Planeswalker."
-1: Create a 3/4 Black Rat creature token with Vigilance named Stormvermin Elite.
-13: Each opponent loses 13 life. Each opponent that lost life this way must also sacrifice 13 permanents and/or discard 13 cards.