Kill 50 supply worth of units within 15 seconds in a Melee game.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.
Complete all mission objectives in the “Echoes of the Future” mission.
Destroy the Loki in the “Engine of Destruction” mission on Normal difficulty.