Viable. Even starting naked. Nuke undead. Don't let people push you around because you're nuking undead. U can even nuke living stuff and fight wisps with your magic summoned hammer at lvl 14 or w/e. This pretty effectively till 40 or so, even after but the exp slows down. Consider the undead camps in nektulous and the undead wandering oasis, and s ro as alternatives to unrest.
+max wis if u want a swift journey, twink a melee weapon if u want a slower more face tanky journey.
You can spec evoke, and then respec to alteration with this quest
http://wiki.project1999.com/Respecialization if you are so inclined. It should literally take about an hr of your time to respec once you decide to. In casting your minor heal 300 times. Fear is alteration as well... and fear + nuke is the best way to solo. Don't worry about snaring, just find a spot u can chain cast fear in. Use panic or the short 3 tick fears if you don't want to chase mobs too far.
it's entirely possible you will become 'adopted' by a few leveling partners before you are even level 30, this happened to me everytime i played a cleric
just about any shield helps u not die instantly at low lvl