I love this game and have put so many hours in to it... its crazy... there are so many awesome decision making moments and opportunities that are easy to miss but if you find them... just wow its so fun.
Hexia is way way too hard though, just absurdly difficult compared to any other option. She starts with way too many enemies and her skills are all so much more impactful than any other final boss... summoning a demon is just such a game ender and why does she get to deal so much damage to you with just her passives? I've really lost so many good hard mode runs just because I keep running in to hexia, I have the hard mode clear unlocked on pc because I totally steamrolled through a dragon on my first attempt... gotten three awesome runs in a row to final boss on hard mode and I get shut down instantly by hexia... inflict pain, 4 petrify, summoning a DEMON when she already starts with 4 imps and they like to summon bones... my issues with hexia have taken up more words than my glowing review of this astounding game that you NEED to own if you've ever even glanced in the direction of a dice game and felt even mildly interested.
Basically you need this game, and eff hexia, if you fight her and win, celebrate.