Hello, I am building a Zon-Kuthon Warpriest, and after considering the Weapon Sacrifice option I realized that I have no clue about these 2 questions:
Is it possible to sunder or damage quasi-real shadowcraft weapons?
If so, which is the Hardness and how many hitpoins has a shadowcraft weapon?
Bonus: If you can not damage them, can you use Weapon sacrifice with them? Does this depend on any Will save?
Nothing seems to say they don't, so RAW, they do. What that would be is harder to say.
Personally, I would look to shadow conjuration. So, 1/5th hp, full hardness. Unless they disbelieve, then 1/5th hardness. Based off the hp and hardness of the type of weapon it currently is.
I would then add the bonuses from enhancement on top, and fully (not dividing by 5, even if they disbelieve).