Score the rank of Bronze in the “Psionic Assault” challenge mission.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.
Destroy 10 cloaked or burrowed units in a single Melee game.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Win 3 Team Unranked or Ranked games in a row.