Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Win 5 1v1 Unranked or Ranked games in a row.
Create 100 Larvae with Queens in an Unranked or Ranked game.
Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.