I'm typing on the phone so won't do a quote pyramid.
Crystal Clarity is so oddball that I don't have any idea how to think about it from a balance perspective. Also I don't know why I was focused on seeing through people's clothes.
Final Cut - If you want a debuff for the arm being gone and not being able to use the arm to hold a weapon/shield/whatever isn't enough, you could always go with the optional rules on page 27 of the DMG.
I haven't played attention to philosophy since high school so I missed all the philosophy references.
So Crazy It Just Might Work is now oddball instead of outright gonzo. Much better.
Honestly I'm not sure what the best way to go with idea progression would be. I don't like traditional spellcasting so I don't play traditional casters which means that it's harder for me to know what a good balance for that spellcasting equivalence from a class features perspective.