Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Complete the “Belly of the Beast” mission without letting a hero fall Incapacitated on Normal difficulty.
Kill every enemy unit in the “Ghost of a Chance” mission on Hard difficulty.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.