Do the Ruins that Shadowheart is lookin at in the beginning. That's where you gonna get most xp
Yes, I tried that several times. But it was quite disheartening when the enemies could one-shot my party and I mostly missed. And then spent most of my turn helping my party members, so I couldn't really fight.
But I manged it finally, after many tries. But none of my chars lvled. I'm now in the crypt and about to fight some skeletons. Not sure how that will go.
Sorry if I sound a bit negative, I love this game. It's awesome and I want nothing else than sink a ton of hours into it, but it's hard to be motivated to do that when the battles feel out of my league with very little ways of lvling my party.