I'm hesitant to speak up on this, because some fights (the troll/pygmy fight in the cave comes to mind) are impossible without this, but the healing magic you get at the end of the magic quest is fucking broken. With very few exceptions (again, the troll/pygmy fight mentioned above), you can literally forget about any strategy or tactics, park Kara behind Nora's ass, and just have her spam heal every turn while Nora facetanks and beatsticks everything down.
Even with the troll/pygmy fight up, once I had killed off the pygmies and the troll was alone, the troll literally could not outdamage Kara's healing, so it was game set match. My suggestion would be to nerf insane fights like those into something actually doable without what is essentially a cheat code, and then nerf the healing.