Battle.net

Use Blink to save a Stalker in a Melee game.

Attack for 20 seconds with no counterattacks in a League game.

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

Destroy 40 units with a single unit in a single League game.

Do a 6 combo gem break and receive "For the Swarm" notification in a game of ’StarJeweled’.