I would like to see Geomancer!

Can use the environment to attack the enemy. Either through elemental spells or physical rocks, fire, ice etc.
The strengths of the spell would largely be dependent on the environment and weather effect.

Once you get to 45-50 spells will be learned to summon spells that that are not usually casted in that area. like Ice and water in Desert areas, Lighting without clouds in the sky etc.

I'd like to see something a little more threatening than the weapon of "Cow Bell" but if we have to stick to canon so be it! lol