Mage class:
http://dragonage.bioware.com/da2/world/classes/mage/
Mage Specializations:
Force Mage: All mage specializations manipulate energy, but Force Mages revel in it. A specialization popular in Kirkwall, they focus only on the raw application of magic, in all its vicious glory—maelstroms that draw opponents, ethereal weight that crush and slow, or great waves that throw enemies about like ragdolls. Targets not to be toyed with are simply slammed into the ground, as though pummeled by a great fist. And in their mastery of such damage, Force Mages can make themselves all but immune to similar attacks, an ability that hints at the true discipline they must maintain. After all, unsubtle doesn’t mean unsophisticated—the Force Mage specialization requires uncommon precision to keep such overwhelming power under control.
Spirit Healer: Spirit Healers focus on restoration, not destruction. They know that the best way to win a battle is to keep themselves and their allies in the fight as long as possible. They are the mages most likely to be accepted—or at least tolerated—by common people, and yet templars fear them as much or more than the damage-focused specializations. No other mages so directly draw their power from the beneficial spirits of the Fade. It’s a risk, but the rewards are undeniable. Removing injuries, granting resilience to wounds, even rescuing comrades from the brink of death—these are not support abilities, they are the core of any effective party. Any fool can cause harm, but no amount of muscle can make a weapon heal.
Blood Mage: Nothing inspires as much wild-eyed terror as the Blood Mage. Mages of this type take the raw energy of life and twist it to their own purposes. They can corrupt and control, and sustain their power by consuming the health of others, willing or not. The effects can be vile, but this specialization isn’t limited to madmen and monsters. Many see it as the only form of magic that is truly free, because it’s tied to the physical, not favors to spirits or demons. It remains an undeniably violent and self-destructive discipline, however, and the Blood Mage must be careful. The temptation to take just a little more is always there.