I can;t speak from high level but at 15 I have been putting points into Wis. VIt,Dex and the rest as I will. As an orc i get 2 pts of strength per level anyway. I do pretty well solo. Some of the fights are long but I have yet to run dry on mana with the exception of one fight with a partner that we got to many adds. At 105 Wis though I am going to start dropping more pts into Dex and Con as I continue on. So far no complaints. And as a secondary healer he works well. i get a little nervous when I am primary but so far no one has died
