I'd like to see elementalism having less element specific stuff. Like, for example.. geyser should clearly be in aquamancy- and stoneskin in geomancy. Firewall- pyromancy, gust- aeromancy(when they come in). For a gust equivalent, aquamancers could have currents, which would work like gust, but only in water. And geomancers could have a tremors to make a small earthquake bounce you off in a direction. It'd be sweet if there was an elementalism(perhaps) spell called gravity- some power, just makes flying impossible in this room for a bit. Also.. dig should totally be in geomancy! I dunno though- some of these are quite utilitarian- should it be changed?

Input!

I think the idea is that elementalism is sort of a jack of all trades skillset in that in incorporates all the elements. This makes perfect sense if you want to look at it in a historical perspective, perhaps back to some unmentioned point at which the four specialists were more united. A student gains a basic grounding in the magic of the four elements and then chooses one to specialize in.

Elementalism is supposed to be like the father skill for the other skills. If you were to take all the element-specific skills away you'd leave like... Blast. That's it. You can't expect a good Aquamancer or Geomancer to not know anything about the other elements.

"Water? What's that?"
"I never really thought about what I'm standing on right now."

I also think that Elementalism as it is now is a good base. There are skills there from every element, the skill specializations are the ones that are meant to be specialised (Aquamancy and Geomancy, that is) - not Elementalism itself.

Just look at what the teacher says when you're learning: "Finally, Meleris, Keeper of the Pool of Stars reminds you that understanding the elements is but the first step towards truly mastering a single element."