I am playing a bladebound magus and have the problem dealing damage against demons due to there immunities (electricity) and resistancies (fire, cold, acid). All I could find was Vampire Touch but there is a big gap between a shocking grasp damage and a vampire touch. Since the spell has to have a range of touch we are even more limited here. I was wondering if it is possible to make the black blade holy to deliver the damage but I think that only the weapon damage would be holy but not the spell damage on it. I could not find something about it though. Or maybe there exist a proper sonic damage dealing spell I have not found yet.
BTW. this problem is not limited to the magus it counts also for other builds like the arcanist blade adept etc.
Anyone having an idea here?