Ok for DW pistol Purifier (fire) which is the better blacksmith to choose, Duncan or Angrim, I know one does magic the other physical, but am unsure which one would be best for this class. any help is most appreciated.
Duncan is the most useless smith imo. I would always use Angrim and try to get items with %armor roll, seems to be the most valuable roll if you are not playing soldier-based class. But you can get different ones in different difficulties.
Duncan can provide energy regeneration, which is great for an AAR or other energy hungry build. Otherwise, I like armor.
You will want the one in Tyrant hold or the new one in xpac with similar bonuses
Agree, and % pierce resistance is good for some builds too.
I always get both for different difficulties, that way I always have an option.