C1583 Collecting demonic holy blood
Ling Yun was a half-step Martial Emperor in his previous life, so he naturally knew how strong the Holy Blood was. However, he was confident that he would be able to obtain the Demon Sage's blood.
The primeval chaos furnace was a "tool" that had branded his Tao technique. It was engraved with his comprehension of the Chaos Laws and other numerous laws