After previous leaks and hints, blizzard officially announced overwatch's 31st hero Sigma last night. But this isn't a video of how the hero played. Blizzard made a short animated background film for the hero. Here is the video.

Apparently Sigma was an astrophysicist who was a bit off his rocker. The hero, it can be seen, has paid a price for revealing a secret, and has become delirious and deranged.

Through video's repeated lines, we can guess that the hero's skills may be related to gravity elements. In addition, through the short video, we also saw that Sigma should also be used by the villain group Talon. At the end of video, we saw him with several other heroes Doomfist, Sombra, Widowmaker and Reaper in the game.

The hero's skills and launch date have not been announced. According to a tweet from Overwatch's Mexico World Cup team, it's clear that the hero has already started testing inside blizzard. I believe that after the specific online time should not be too far.