So far as we casters are concerned about the only 2H weapon we can learn is staff. As a priest I can use a staff, dagger or 1H mace. That's it. My off-hand is used strictly for off-hand buffing items: + intellect, etc. The ranged weapon slot is used for our wands. We can't use any other ranged weapon: guns, bows, crossbows. That's what makes us casters. *_^