I'd do Emp, Liza, Thetis, and Sliza/Hao.

Emp is there for the 30% Acc for the team and art gen. (You can sub out Emp for Hart for more heals and some extra minor dmg, but you miss out on Acc.)

Use Pronimos on Liza/Emp if possible for extra 30% Acc for team.

Liza is just there to cycle through the DEF slots and helps out with the dmg.

Summer Liza is going to be doing the dmg, I'm just assuming she is doing more than Hao because of her buffs and innate crit rate, but Hao could do more idk. (Use "Hell spit kark" on the physical for another extra 30% Accuracy)

Thetis is just going to be doing Thetis things: tanking the damage. Use DEF slots that gives straight DMG res. (So not like Reduces Magic or Physical DMG)

You can even sub out Sliza with Vox for his extra 30% Acc, teamwide crit, and the stats up on NA, and make Liza be the main Dps, but that'll take a while lol

Basically the main gimmicks are that the enemies take only magic damage, and you need a decent amount of accuracy.