Real PEOPLE don't solve conflicts with violence.

However, I will point out that melee warriors of any kind are pretty much helpless once they are dead before they knew what hit them.
Oh, and the idea of pure casters running out of magicka is pretty hilarious. No pure caster would ever be caught in that position, after all (with the possible exception of having magicka drained in some fashion outside of their control... but the same problem exists for melee warriors, so whoopee)