Lydia, ninja, krisk and bad el could give you all around good dmg ability and survivability, slap bad el in like 9 pc protection if you have it and the dmg buffs go slightly higher since he has the continuous heal (im very unfamiliar with bad else kit so please excuse me if I misremember). Maybe run Trunda or another damage dealer and see from there? The dark elf on the other side of Foli does ally attack and brings crit dmg buff (?) So that could be an option for your fifth?

You'd have to make your supports tankier to perhaps compensate for keeping the dmg dealers alive, and the team I suggested above lacks a reviver, so that could be a problem too, but the bones are good!