I have her 3 star g11. I put her in a sith team under traya. Traya, dark bastilla, sion, nihilas, and Sideous. Dooku would likely be better but my sideous is more developed. Seems to hold on defense or at least intimidate my opponents frim attacking it in ga so far and it lets me save my ep, vader, and thrawn for a strong empire team.
I've toyed around with using her under traya lead to make traya survive against revan teams I can't out pace but so far no luck there. With traya only 5 stars g11 it doesn't seem to work for me.