Power Struggle

Choose a creature.
That creature's controller may discard a nonland card, then if they discarded a card this way, any other player may discard a nonland card. Repeat this process until no player discards a card.
If that creature's controller discarded less cards than the total amount of cards discarded by other players this way, destroy the chosen creature.
Alas," the demon said, "my plans must take priority. Zendikar falls." He gave a slight nod, and the spawn closed in on Nissa. "And Zendi