A new Tracer event is now live in Overwatch on Nintendo Switch, PC, PlayStation 4, and Xbox One. From now until September 28, you can earn a new Tracer skin and more by participating in matches.

Titled Tracer’s Comic Challenge, the event gives you two weeks to earn a total of nine rewards. Winning three matches in Competitive Play, Arcade, or Quick Play nets you a player icon. Similarly, six wins in either mode rewards you with a spray, and nine wins gets you the epic Comic Book Tracer skin.

In addition to playing the game to get new rewards, you can watch any Overwatch match on Twitch to earn additional cosmetics in two-hour increments. This means if you watch for two hours, you’ll get one new spray. Watch for four hours and you’ll get two sprays, and you’ll get three sprays if you watch Overwatch games on Twitch for six hours. You can check out the rewards below.

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The event is in celebration of the new Tracer comic series, London Calling. Blizzard partnered with Dark Horse Comics to release the series, illustrated by Babs Tarr (Batgirl) and written by Mariko Tamaki (Skim, X-23), which focuses on young Tracer as she navigates London’s streets. There are five issues in total, each one releasing on a monthly basis, with the first one available to read right now. Physical editions of London Calling will be launch in the coming months.