Bolas's Demand

Each opponent chooses a creature or
planeswalker and sacrifices the rest.
For each creature sacrificed this way, create a 2/2
black zombie creature token.
For each planeswalker sacrificed this way, put a loyalty counter on each Bolas planeswalker you control.
"You will do my bidding."
— Nicol Bolas, to the Gatewatch.