Swarm Host

During your upkeep you may, if you didn't last tound, pay {b}{g}. If you did create 2 1/1 black and green Locust creature tokens with flying and haste.
"Last but not least is the spawner of the swarm: the Swarm Host. These guys can create numerous pesky Locusts and now, we know how. So check out all the details, and arm yourself and those around you with an understanding of one of our greatest foes."
—Radio Liberty