We should fix all the classes, mage and others alike. All end game content at this point is basically requiring upper tier mages (2x damage at least above other classes). Raise damage on everything INCLUDING mages and then apply a depreciative curve. So sift and others at max tier can still do a couple percent more damage with their skill but also so a good tier mage can match a good tier ranger (at present, good ranger > good mage, while great ranger < great mage)