C98 Teacher Tian Ling
Forging was a long and complicated process. The higher the quality of the weapon, the longer it would take.
For example, at this moment, Tianling and Casting Grandmaster were forging swords that were at least of diamond quality, and the time required was at least a few hours. This sort of temporary competition could be shortened to at most two hours, and it wouldn't allow others to wait for long