There's one thing worth mentioning—wizards can enhance their spellcasting effects by relying on casting mediums that are compatible with themselves.
From the very first generation of wizards, when the transcendents of the Eastern Empire brought the world's elite into their fold, turning them into Sorcerer Zombies, people never stopped exploring how to possess great strength without becoming Sorcerer Zombies.
After that, two great inventions emerged—witchcraft and casting mediums.
These were extremely effective in reducing the possibility of wizards turning into Sorcerer Zombies.
Take Chen Shuyun for example, her casting medium is a jade bracelet.
In fact, everything has its traces, although there is no evidence to show that the Eastern Empire figured out how to use Stone Treasures to bolster one's Furnace, yet this technique is definitely influenced by the idea of 'casting mediums'.
What's more, the Furnace Core, isn't it the Witch-hunting Knight's casting medium?