Battle.net

Kill 50 supply worth of units within 15 seconds in a Melee game.

Destroy 4 Command Centers, Hatcheries, or Nexuses in an Unranked or Ranked game.

Win 5 Team Matchmaking Unranked or Ranked games.

Play enough qualifying games to get placed in a Matchmaking Ranked League.

Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.