Destroy 40 units with a single unit in an Unranked or Ranked game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Play enough qualifying games to get placed in a Matchmaking Ranked League.
Use Blink to save a Stalker in a Melee game.