Battle.net

Win 5 Team Unranked or Ranked games in a row.

Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.

Kill 50 supply worth of units within 15 seconds in a Melee game.

Kill 5 Changelings in an Unranked or Ranked game.

Win 100 1v1 Unranked or Ranked games as Zerg.