For fucks sake, Talwa.
Alright, we can salvage this
First, I agree with fighting here. We definitely can not deal with Dahlia and Alide together.
However, I still don't want to kill her.
I propose we use this opportunity to gift ourselves a Dahlia!
After all we do have the tarnished ring of clear mind that can bind on angel or demon. All we need is get that on her finger and BOOM: Gift Demon!
Goma, use puppet to try to keep Dahlia pinned on the ground.Also sound the horn
Yulia use undermine on Dahlia and energize the rest of our group. After hit Dahlia with continuous Fireballs Drink as many mana potions as you need. Also hand the tarnished ring of clear mind to Lri
Talwa keep using Firestorm on Dahlia to keep her pinned down just as Yulia, use potions as needed
Sally and Beck, since you two are basically immortal you are the gank squad. Rush Dahlia and just kick the shit out of here or something.
Isalia and Maple you are going to chuck Incendiary and Aphrodisiac grenades at Dahlia from all directions. Don't worry about hitting our team mates, they are immortal after all
Lri, you have the most important job of all, turn yourself invisible and in all the carnage find an opportunity to slip the ring of tarnished mind on Dahlia's finger
Lemiel, you are backup 01, use heavily soothing to give people who needs it heal and jump in, in case Dahlia managed to escape. If you are bored feel free to hit Dahlia with Angelic Rays
Cherchiel you are backup 02, if things turn south, equip the executioners axe turn into Boarchiel and rush Dahlia. If it gets to this point we probably have to abandon our capture plan and aim for kill instead.