At the Blizzcon 2016 keynote event today, Blizzard finally revealed Overwatch's newest character: Sombra. The reveal came with a brand-new teaser trailer, entitled Infiltration. Sombra is a Mexican spy allied with Overwatch malcontents Reaper and Widowmaker.
The video teased a hero that can hack into security systems, turn invisible briefly, and teleport to a dropped beacon. On stage, Blizzard founder Mike Morhaime said that Sombra can hack into enemy abilities, temporarily shutting down opposing players. More detail on Sombra was given when her official Overwatch hero page went live.
Her basic weapon is the Machine Pistol, which fires a short-ranged spread. Wtih her Hack ability, she can temporarily stop opponents from using their abilities or prevent first aid kits from providing any benefit. Themoptic Camo makes Sombra invisible for a short period of time and boosts her speed, but attacking or taking damage cancels the ability. Sombra's Translocator ability drops a beacon on first activation, with the second activation teleporting her back to the beacon. Her ultimate ability is EMP, which destroys enemy barriers and shields, and hacks all opponents in a wide radius.
Sombra is playable at Blizzcon 2016, so I'm sure we'll find out more about her today and tomorrow.