https://www.gamespot.com/articles/overwatch-update-changes-mercy-yet-again-on-ptr/1100-6454546/

There is, however, plenty to check out in the live version of Overwatch. This year's Halloween Terror event is still happening right now, and it brings back last year's co-op Brawl mode and new cosmetics. You can check out all of the Overwatch Halloween skins and weapons in our gallery.

Developer Comment: Ana has been outshined by other support heroes lately. Boosting her damage will help her defend herself and make her more threatening to the enemy team.