Another sniper emerges, though this one is more focused on helping instead of killing.
As a support, Ana has many ways to help her team, and cripple the enemies. She has biotic grenades that heal allies in the area it was thrown in, while damaging and negating healing for the other team. She also carries some sleeping darts to knock out foes for a short while. Her ultimate empowers an ally, causing them to move faster, take less damage, and hit harder.
Check out the two videos below to see her origins in the Overwatch universe, and a little bit of her gameplay.