Yesterday, Blizzard released the first part of "London Calling," a new five-issue Overwatch digital comic miniseries about Tracer's life in London after the Omnic crisis and the breakup of Overwatch. Today, an in-game tie-in event called "Tracer's Comic Challenge" launched, giving players two weeks to earn limited-time rewards, including icons, voiced sprays, and new epic skins.

Three wins in Quick Play, Competitive, or Arcade will earn a new player icon, and six wins will earn a spray. The big reward, the Comic Book Tracer Epic Skin, is earned with 9 wins; you can earn more sprays by watching streamers playing Overwatch on Twitch: 1 spray is 2 hours (cumulative), 2 is 4 hours, and 3 is 6 hours.

Tracer's Comic Challenge is live now and will run through September 28. As for the "London Calling" comic book series, a digital version will be available monthly, and a physical version will be released by Dark Horse Comics "within the next few months.