Luls...why wouldn't you exploit a mobs elemental weakness? That's how you solo most efficiently.

It would be no different from the mob exploiting a mage's low defense after closing the range between them.

Clearly the idea is to keep distance between you and the mob by using spells and abilities that stop the mob(s) from closing in on you. All the while nuking them down based on their weakness so you consume less MP.

What a concept. derp.