Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Complete 5 missions in the Wings of Liberty campaign on Hard difficulty.
Regenerate 500 life on a single Roach without taking friendly fire in an Unranked or Ranked game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Use Blink to save a Stalker in a Melee game.