Battle Objective: Defeat Hashmalum.
Hashmalum is a Lucavi demon with high HP and powerful Earth-elemental attacks. He is accompanied by various human units, often including Knights and Mages. Hashmalum is weak to Wind-elemental attacks. Equip accessories that grant resistance or immunity to Earth. Prioritize taking out the human support units first, especially any Mages. Use Dragoons with 'Jump' or Geomancers with Wind-elemental attacks to deal significant damage to Hashmalum. Keep your party healed and buffed. This is a battle of attrition, so be prepared for a long fight.