Win 250 1v1 Unranked or Ranked games as Zerg.
Score the rank of Silver in the “For the Swarm” challenge mission.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Create 100 Larvae with Queens in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.