https://www.gamespot.com/articles/new-overwatch-hero-revealed-moira-the-dps-healer/1100-6454645/

During BlizzCon's opening ceremony, the developers behind Overwatch revelaed a plethora of new content for the popular hero-shooter. But the most interesting of all, was a brand-new hero named Moira, a shadowy character with ties to Talon and Reaper's past, who focuses on dealing damage, while healing her teammates.

In the new trailer for Moira, we learn more of her backstory--including her ties to Talon as a geneticist--and her unique abilities that make her stick out from the rest of the roster. Following a sort of shadowy archetype, including the ability to cast healing beams, teleports, and other bionic skills, Moira is a bit of a hybrid support character. Noting that fans wanted more healing characters, Moira features abilities that focus on healing her allies, but she also possesses the skills to deal serious damage when it counts.