The "Crystal Balls" give you a resistance to different elements. The one you get from the old shadowling gives you light resistance, the one you get from your brother gives shadow resistance. Those are the only two I've found though...
Why do you get different eggs fram baby blue beetles, and blue beetles? Shouldn't they both be baby blue beetle eggs? And then maybe grow into a blue beetle after a certain amount of levels?
Why do my innate spells keep re-equipping themselves every level? I unequipped create skelton for a reason, I can summon 3 now without so much as a second thought, why would I ever want just one? Not to mention they keep displacing my direct damage spells.