Great game, but I found a few bugs.
1) Warlock's Circle is spelt as Warlock's Cricle
2) Magic Resist is almost impossible to level
Also, tactical combat is waaaaaaaaay too slow!
@Kittyfox: Try putting 10 points in Arcane Blast,0 in Bolt Mastery and if you still can't get enough burst damage this try, you could put the remaining 10 in Power. I first killed Hungarfen like this, but I could not kill the rest of the bosses without Frost Nova so I respecced and did it again without Power. Presence of Mind won't work if you have Frost Nova because Hungarfen is immune to stun, preventing Frost Nova for firing, therefore causing Presence of Mind not to work since all your skills must be greyed out first.
I managed to kill Hungarfen as a mage at level 70 by speccing my skills like this:
10 Fire Blast
10 Flame Strike
10 Pyro Blast
5 Conjure
5 Arcane Blast
10 Bolt Mastery
1 Presence of Mind
This leaves you with 10 unallocated talent points. THIS IS NOT A MISTAKE.
You basically need a high enough intel to be able to take him down with 2 rounds of nukes. I had a level 68 epic wand, level 70 epic armour and a level 70 superior book. I only managed to kill him with enough hp to take 1 hit left, so I suppose you could substitute the book with a shield if you need a little more time to kill him.
After killing Hungarfen, put the remaining 10 points into Frost Nova and kill the rest of the bosses for a Heroic item at the end :)
 "Arkandian Revenant")
 "GrindQuest")