Destroy 20 units with a single High Templar in a Melee game.
Have 9 Protoss units warping in simultaneously in an Unranked or Ranked game.
Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.
Score the rank of Gold in all the challenge missions.
Destroy 10 cloaked or burrowed units in a single Melee game.