The Ice Lord

Reveal The Ice Lord: Tap all permanents your
opponents control. Nonland permanents your
opponents control don't untap during their
controller's next untap step.
As long as The Ice Lord is face up:
•Your opponents can't win the game.
•Whenever a non-zombie creature dies, create a
2/2 Zombie creature token.
•Zombies you control get +1/+1