Hi.
I used a Flying team. Caeda, Duo Palla, Young Minerva and Summer Tiki. The last three with Wings of mercy. All of them with
I used Palla Duo Skill to give Caeda three movement in the first turn.
Caeda with Life and death,Lunge,Galeforce and her Flashing Blade Refine, swift sparrow seal.. She can kill the green armor, switch and be in Wings of mercy range.
I had Duo Palla kill Hrid. Summer Tiki repositioned Caeda.Then she killed the green mage. Minerva transport too.
After that it was manageable to deal with the enemies. If you need more details tell me.
Tiki can be replaced since I only used her because I had no other flying unit available.
Hopefully this helped.