Using Warp Prisms, warp in 50 units in a single Melee game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Complete the “Infested” mission in the Heart of the Swarm campaign.
Infest all Garrisons without losing a Virophage in the “Infested” mission on Normal difficulty.
Kill 20 enemy units with the Laser Drill in “The Dig” mission on Normal difficulty.