It's funny how fast all of you are quick to argue instead of discussing the main topic at hand.

26/27 Mage Build:
6 Heal, 6 Blessing Of Vitality, 6 Blessing Of Might, 1 Frostbite, 3 Lightning, 2 Drain, 1 Firestorm, 1 Mana Shield - As you level just add points in lightning, & whatever other skill you want, not the best but it'll keep you alive for sure.