the divine dragon will be a very tough boss but you can beat him with the dragon block staff but you can not use your dragoon at all(if you got muru dragoon to level 2 at lease you can use her power) take out the divine cannon and ball or the 2 can take out your party after you take out the divine cannon and ball focus on hitting the divine dragon with additions the boss will hit your party with fearful but if you have muru use her rainbow crest after that keep in mind if you do not take the divine cannon if you see the counter take out the cannon right now or it will deal out heavy damage(very heavy damage when fighting the spirit of the divine dragon on disc 4) I managed to take out the cannon before the cannon even fired after that just use additions and multi-hit items oh the attack ball could become your best friend it might use the physc bomb maybe I really do not know same goes for the recovery ball if keep up on the attack you should be able to beat the divine dragon in minuntes but this boss TOOK ME MANY TRIES TO BEAT HIM NOT EASY