Battle Objective: Defeat Queklain.
Queklain is a Lucavi demon with powerful magic attacks and the ability to inflict various status effects. He is often accompanied by Undead units. Queklain is weak to Holy-elemental attacks. Equip accessories that grant immunity to status effects like 'Sleep' or 'Poison'. Prioritize taking out any Undead units first, as they can be revived by Queklain. Use Holy Knight abilities or Holy spells to deal massive damage to Queklain. Keep your healers active and spread your units to avoid his area-of-effect spells. This battle can be tricky due to the status effects, so come prepared with remedies.