Destroy 30 units with Infested Terrans in an Unranked or Ranked game.
While playing as Zerg, warp in a Zealot in a Melee game.
Destroy 5 units with a single Neural Parasited unit in an Unranked or Ranked game.
Mutate a Lair during the first 285 seconds of a Melee game.
Kill a Stank before it kills anything on Hard difficulty.