Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Destroy 20 units with a single High Templar in a Melee game.
Destroy a total of 100 enemy units in Free-for-All Quick Match games.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.