Would it be possible that the higher lvl of a blacksmith could make weapons with better stats (not better quality)?
What I have in mind is that:
Lvl10 blacksmith can do a simple flaming katana ;] to do it he have to spend 15 minutes. And this sword would have normal stats, like generic flaming katana from NPCs
Now lvl 20 blacksmith can do a better flaming katana. This catana could have +1 fire damage, or +2% fire resist. It would take more time to make this item, and maybe some special items like crystals or something. He still can do normal flaming katana though...
But there should be some kind of skill tree with it.
The blacksmith would have to specialise to make +1 fire dmg katana, to make +2 fire dmg katana he would not only have lvl30 in blascksmithing, but also lvl2 specialization in making +fire dmg mods on flaming katanas.
That would make blacksmith job more interesting. And You could be that ONLY blacksmith in the country that can make +10% fire resist katana