Use the Artifact no more than once in the “All In” mission on Hard difficulty.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Attack for 20 seconds with no counterattacks in a League game.
Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Destroy all Protoss structures in the “Welcome to the Jungle” mission on Normal difficulty.
