Overwatch’s new hero Sigma now playable on the PTR

The latest Overwatch hero, Sigma, is now available through the PTR.

Blizzard revealed the latest hero to join the Overwatch ranks yesterday through an origin story video.

The hero, Sigma, is now available on the Public Test Realm, and we also know more about the character in general.

He can apparently slow down time, walks around in a jet-powered armor suit, and can control a "super powered hamster ball." Sounds interesting.

Sigma is a scientist and a tank with the following abilities:

• Hyperspheres 
  Launches two gravitic charges, which bounce off walls and implode after a short duration. This damages enemies within a sizable radius.
• Experimental Barrier - secondary ability
  Propels a floating barrier to a location of his choosing. He can dismiss the barrier at any time.
• Kinetic Grasp - primary ability
  Freezes incoming projectiles in midair, converting them into shields.
• Accretion
  Gathers a mass of debris and flings it at an enemy to knock them down.
• Gravitic Flux - ultimate ability
  This ability allows him to take flight, and lift enemies in a targeted area. He then launches them into the sky before slamming them back down.

More information on the character is provided in the developer update video above.