The Imp alchemist has taken the cure back to the village and I am left to kill the Imp shaman which I can not do. He seems to heal himself as we keep hitting him. How do I get rid of this guy?
Also, why is it that sometimes I am able to make potions with my alchemy skill and sometimes I can't. It seems I can only make them when I don't need them.
The best way I found to defeat the shaman was utilising the 'hit and run' tactic. As reported about Skeleton Mages, if you keep running away a bit, hitting, running, hitting etc he'll soon run out of stamina. He'll still heal but you can hit him while he recovers. (This is for warriors without magic). If you can find a poison weapon (I had a poison death knight sword) that also works wonders as it negates his healing and almost always works.
Failing that, try and block him in a corner so he can't run away. If he can't run, he's a lot easier to hit and you should land some crits.
Only problem I had using a melee was my resistances sucked, so I had to use a lot of potions.
Just try and avoid him running around and he should be a lot easier.