I can't remember off the top of my head. I did a build years ago that way, I know nerd rage is one of them but if I remember when I get home I'll try to put together a list of em.
Lol! The awesome thing is that with most of them, it also boosts XP, which is needed because they're all at the end of tree (think level 95+ for all of em). It wasn't exactly my type of playthrough, but I had fun with it for a while.