Attack for 20 seconds with no counterattacks in a League game.
Complete the “Zero Hour” mission on Normal difficulty without losing or salvaging a structure.
Score the rank of Bronze in the “For the Swarm” challenge mission.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in a League game.
Complete the “Belly of the Beast” mission without letting a hero fall Incapacitated on Normal difficulty.
