Lukily, nowadays you can buy mana potions. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
They actually made nercormancers pretty good in the new patches. If you can find the right gear, you can powerbomb those bosses!
I've beaten it with a Skleton/Mage sommoning necromancer and a Bonespirit necromancer. On single player. So, its possible, but you gotta be real persistant; ie, dying and going back in over and over at times. <img src="/ubbthreads/images/graemlins/tongue.gif" alt="" />
Enjoy! <img src="/ubbthreads/images/graemlins/delight.gif" alt="" />
Killerzzz
P.S. (EDIT): No matter what kind of necro you are, getting at least one curse only once is a good idea, and you can never go wrong with Aplify Damage. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
