Overwatch Challenge

Blizzard announces Sigma's Maestro Challenge for Overwatch, offering the chance to earn new cosmetics in the first-person shooter between now and July 27th. Here's a trailer and here's an overview:
It’s your turn to take the stage! Take part in Sigma’s symphony to earn limited-time rewards, including Maestro Sigma (legendary).

From now until July 27, players will be able to earn a player icon, a legendary emote, six unique sprays, and Maestro Sigma (legendary) for a total of nine new rewards.

  • THE MAESTRO - Learn how to unlock brand-new Sigma rewards
  • WATCH TO EARN - Earn special music-themed cosmetics by watching Twitch streams
  • AMP IT UP! - Learn more about the new soundtrack, Overwatch: Cities & Countries