Score the rank of Gold in the “Infestation” challenge mission.
Use Blink to save a Stalker in a Melee game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
While playing as Zerg, warp in a Zealot in a Melee game.
Kill 50 supply worth of units within 15 seconds in a Melee game.