Destroy the Loki in the “Engine of Destruction” mission on Normal difficulty.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Have 9 Protoss units warping in simultaneously in an Unranked or Ranked game.
Use Blink to save a Stalker in a Melee game.