I am not one to usually place nerf threads, but I am just curious, honestly how the community feels about her abilities. At the end of each of her turns, Barriss Dispels all debuffs from the debuf...
Barriss does almost non-existent damage. She's fine. Honestly with Wiggs capable of 50k triple attacks, Boba dropping 70k crits on heavily buffed/debuffed toons, and Nihilus having an instakill button... her heal can be overcome.
You can also try a team comp NOT built around crit damage. Nihilus lead with Sith modded for offense is interesting.
All in all crit damage had gotten totally out of hand and Zarriss helps to balance that without needing any characters nerfed. She's fine.