Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Use Blink to save a Stalker in a Melee game.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Deplete 10 Rich Mineral Fields in a single Melee game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.