mage is a bit crap in this game. Pyromancer so far has only a strong skill is fire ray which deal HUGE damage, other skills is more like CC version like anything. In fact, most of mage skill is all but cc skill one way or another.
Even pyromancer which supposed to be pure damage has most of its skill for area denial. Fire ray cost 3 ap, so if you cast one, you're left with using haste or clear minded than anything.