Well I am lv41 player who spent long long time on this game … and trust me when I say I wasn’t so sure I can finish this lv30 quest.
But with a lame team of
Rigard Boril Mele Boril Horg
I did it.
So my guess is no matter the roster you have is full of regulars even not maxed you still can beat it.
PS, Horgall is 2^60
Battle items used:
Antidots Turtle banner Meduim HPP Dragon attacks.
Hope this tips may help you finishing it as well.
Have a great day.