It broke? So be it! Reforge it, and that's that! It's no big deal!
Li Fan hoped he could say that, but sadly, he couldn't.
Within the Xuanmen's five arts, weapon refining is an extremely costly setup, and sword refining is even more costly. Reforging and upgrading a flying sword is exorbitantly expensive!
Alchemy will impoverish three generations, and sword casting will ruin a lifetime - this isn't an exaggeration! Even if the Xuantian's Taiji Sword Casting Canon could use the Taishu Realm's Void Jade to forge swords, it's clearly not enough with just a couple of materials. As for the development of material science, it's a deep pit that relies heavily on luck, almost like a lottery, requiring one or two hundred years of experimental accumulation to achieve anything.