Battle.net

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

Win 5 1v1 Unranked or Ranked games in a row.

Destroy 20 units with a single High Templar in a Melee game.

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

Destroy 40 units with a single unit in an Unranked or Ranked game.