Already beat Level 150 in first try.
Just tried Level 200. All first 3 room is great with no troops lost, then Scaled Court with Lumia happened. 
Now that I have to beat the boss like this, I really can’t win.
So basically, if you want to try Faction team here, check the Epic room first. If it’s Scaled Court, just give up and use your normal team. There is no hope in that room.
Edit : Finally did it. Need 5 tries in total.