Casper

A rather strong Aircraft-type enemy, the Casper differs from several of the enemies from this same type because of being one of the few capable of using the Dual Chamber Gun skill, which deals Fire-elemental damage in addition to the physical damage. It can also use the Energy Drain attack, which heals the user for the damage it dealt in addition to reducing the target's attack power, and finally, it demonstrates suicidal tendencies because it can use an attack called Enemy Explosion, in which it explodes, killing itself, to deal large Fire-elemental damage to all vanguards. Due to the above, you'll have to destroy it before it has a chance to unleash Enemy Explosion on your party, while taking care with its Energy Drain attack.