After finishing that, Wang Lin’s expression became even more serious as he stared at the symbol on the sword sheath. He formed a seal with both of his hands and he spat out a mouthful of blue spiritual energy. The moment the blue spiritual energy touched the sword sheath, a blue flame surrounded the it
It doesn’t seem right to call it fire. Although it had the shape of a flame, it didn’t have fire’s temperature. In fact, the moment this flame appeared, the temperature of the entire room dropped.
Wang Lin didn’t even blink as he controlled the cold flame to refine the sword sheath.
This cold flame was something he came up with while trying to copy a Core Formation cultivator’s core flame. Because he had no one to consult with, he was very careful about it. After theorizing for a long time, he believe that his cold flame was enough to refine the sword sheath.