Complete all mission objectives in the “Maw of the Void” mission.
Complete the “Echoes of the Future” mission with Zeratul killing 50 Zerg units on Normal difficulty.
Kill 250 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Collect all 5 Xel’Naga Artifacts.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.