Conquer 4 — Sacrifice creatures (Each opponent secretly chooses a number. When this resolves, they must reveal and sacrifice creatures equal to that number. If four or more creatures are sacrificed in this way, this is conquered.)
If Wrath of the Swarm was conquered, each opponent draws a card.
If Wrath of the Swarm was not conquered, each opponent sacrifices four lands and you put a 6/6 black Insect creature token onto the battlefield.