some of the skill suggestions aren't bad at all, but to mention the similarity in a coulple of them:
My suggestion(s):
1) an extra XP gain - already there: Elite hunter. seems like every set has it, hence, it's overlooked as it's never a concern to have full
2) extra gold gain - thievery (although only pvp, but that's only because were two variants in Skills for pve i.e. TH, Merch)

