The problem with wizards is that their damage spells are not that much better than the competition, while at the same time it's often the only thing they can do in a fight. So you trade almost all versatility for a little bit extra burst damage. For damage per mana the wizard is actually the worst caster class. Every other caster has more mana efficient damage abilities with the only ecxeption of AE spells. Everybody else has DoTs or charms or pets that totally trump the wizard DD spells mana efficiency.
Oh i forgot clerics. Clerics actually are less mana efficient with their damage spells, even for undead, but there they get close. But clerics usually don't have to rely so much on that
[You must be logged in to view images. Log in or Register.].