Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Win 3 Team Unranked or Ranked games in a row.
Use Blink to save a Stalker in a Melee game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Win 5 Team Matchmaking Unranked or Ranked games.