Is there any trick for the last part of this quest. Its proving to be a nail in my side here. I can clear the trash mobs just fine until the last boss guy. Its not really him or the mobs but the bubbles.

Im dragoon so kiting doesn't really work all that well, considering it seems if a bubble explodes and I was near it at one point, it will hit me no matter how far I am from it.

It almost feels like one of those quests where im not doing something right. Ive seen a youtube video where a dragoon fights the duty but hes level 50 in endgame gear....and even then it gives him a bit of trouble. Not sure if I should wait on this quest or what. Im level 43.

So is there anything im missing here. Tried kiting the boss guy tossing javelins at him to avoid the bubbles but they some how always manage to hit me