Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Use Blink to save a Stalker in a Melee game.
Expand during the first 225 seconds of a Melee game.
Destroy 10 cloaked or burrowed units in a single Melee game.