By the Song dynasty (960-1279), however, this type of sword was relegated to ritual use because people felt the serrated blade was simply too cruel a weapon. From that time forward, Demon-Destroying Seven-Star Swords were made by drilling little holes in the flat of the blade and filling them with molten copper.
到了宋朝，由於這種劍在實用上相當殘忍，轉而被當作法器，因此之後的七星劍都只在劍身上灌銅做七顆星。