Use Blink to save a Stalker in a Melee game.
Capture 50 enemy units in a single Vortex in a Melee game.
Play enough qualifying games to get placed in a Matchmaking Ranked League.
Destroy 10 cloaked or burrowed units in a single Melee game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.