Absolute World's Best Sword
Alright so A: A divine weapon blueprint is priceless B: All the students should have made a divine weapon blueprint
I mean yes, that is the case. But divine weapon is just a name for weapons that speed up cultivation. A school that focuses on the subject would of course ask such a task to it's student since themselves are special. In a sense it means that anyone could become a blacksmith but not anyone could be a special forger or whatever we called them. So for the majority of people those blueprints are priceless but for the students it's the basic thing they should do- As they have the talent for it.
I'm just going to skip over this chapter as I have studied forging at my college and I don't want to see the author to murder those processes just by adding mumbo-jumbo of forging. apart from magical process, he should atleast watch some videos about forging of fantasy weapons on internet. If I'm wrong no need to correct me as I will also forget about this comment too.