Play enough qualifying games to get placed in a Matchmaking Ranked League.
Win 5 1v1 Matchmaking Unranked or Ranked games.
Win 3 1v1 Unranked or Ranked games in a row.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.