Hey guys

I'm a bit stuck at the moment.
I'm playing this map solo, I'm at level 28, and these are my items:
Shield of the King(improved), Hauberk of the Marsh, Bloodscale Crown,
Mail Gauntlets (improved), Ravager Claw.
With this set up I have 21 armor. I have upgraded only strength for my hero abilities.
I have chosen Boar birthsign, and am now Rank: Recruit.
These are the spells I currently have:
Knuckle Punch, Frenzied Strike, Ensnare, Shield Pound, Intimidating Shout,
Pet Hawk, Savage Energy.
Now, I just cannot get past the Tomb of Horrors part. I get owned and those skeletons are so tough and the mages with their magic damage own me. Does anyone know what I can do to increase magic resistance? And get a much better weapon? Ravager Claw sucks, it only does 4 Damage.
I have tried to use 'Sturdy Recurve Bow'(improved), but I still get owned in the cave of horrors.