Use Blink to save a Stalker in a Melee game.
Destroy 10 cloaked or burrowed units in a single Melee game.
Win 5 Team Matchmaking Unranked or Ranked games.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.