Specifically speaking to the black mage class... the rotation is so mind-numbingly boring and simple I can't believe it. Throw down a lightning DoT, spam fire, then swap to ice, spam ice, swap to fire, spam fire, renew lightning... there are some fillers like convert, insta-cast, sure-cast, etc... but nothing that really adds to the spells you are casting. I'm still trying to figure out what real purpose a soul crystal serves other than as an ID card. It'd be nice to have an accessory that you could actively click and time with your other spells and abilities for increased damage or utility.