Battle.net

Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.

Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.

Win 3 1v1 Unranked or Ranked games in a row.

Win 5 Team Unranked or Ranked games in a row.

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