I run her with a team of turn meter freaks with power hunger issues and I can take out teams that have1500 on me...usually in less than two minutes without losing a toon. It's the Phasma + Old Ben combo that gets the turn meter going and blocks everything. Ben even has turn meter advantage with that block, in addition to Phasma's. Then throw ST Han's turn meter manipulation together with Count Dooku,'s turn meter and counter strikes, with Talia's offence and turn meter + healing, and it really is a slaughter. I don't like PVP that much, so I just do my three and move on. I'm constantly rising up the board, then dropping back just a few until the next day. The players around me are all 1000-1500 more powerful, so I know the team works. When I can add a player I add Rey, and It's the most fun I've seen on screen so far.
I also have a six star Luminara and don't use her on this team. I have a variation of this team with two healers, but I didn't want to get off track. This is a better death squad though. The other team is more defensive, but can certainly take on similarly ranked teams, as you would expect with high ranking Jedi healers. I still believe the below team has the advantage. It will take out squads similarly powered without them getting but one or two shots off.
Phasma 5* 59
Old Ben 4* 59
StormTrooper Han 4* 58
Count Dooku 4* 59
Talia 5* 59 -Talia was recently upgraded to five star, and was very effective even at 4*'s.
Bonus Player/replacement. Count Dooku is a monster in this team, but even still; a chance to add or replace a character is always taken if Rey is in Play. Her massive speed up and incredibly powerful attacks take this team to light speed. It's really cool to watch.