Regenerate 500 shield energy on a single unit without taking friendly fire in an Unranked or Ranked game.
Complete the “A Sinister Turn” mission on Hard difficulty in less than 25 minutes.
Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Complete 25 missions in the Wings of Liberty campaign on Hard difficulty.
While playing as Zerg, warp in a Zealot in a Melee game.