Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
While playing as Zerg, warp in a Zealot in a Melee game.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.