When I ran it last we did the typical strategy of MT with Suparna and Garuda, OT with Chirada. However we had DPS focus Suparna first so MT had less double Wicked Wheels to deal with, it also drops stoneskin on Garuda we found out so it means DOT's and the MT can get a little extra DPS on her. We didn't have any melee, but we didn't plan to change the strat much if one was in our group, just put them on Chirada to avoid any chance they get killed from Wicked Wheel.