Kill 50 supply worth of units within 15 seconds in a Melee game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Score the rank of Gold in the “Infestation” challenge mission.
Destroy a total of 100 enemy units in Free-for-All Quick Match games.
Win 5 1v1 Matchmaking Unranked or Ranked games.