The Thundercloud Sword drew its power from the Demon Core of a Thundercloud Lion.
'Speaking of which, it shares a common origin with these purple stones. Perhaps the sword can use this pure Thunder Power.'
Chu Qingyun guided the pure Thunder Power along his meridians and out of his body. As it neared the Thundercloud Sword, the blade absorbed it with ease, just as it had absorbed the power from the Demon Core before.
With the successful test, Chu Qingyun began to use his Devouring Martial Soul to rapidly refine the power within the purple stones.
At first, he could only absorb some of the light purple energy, which he then had to move to his Qi Sea for the Devouring Martial Soul to consume and refine.
Later, as he grew more proficient, his process became much smoother. He could continuously absorb the light purple energy while simultaneously having his Devouring Martial Soul consume and refine it, outputting a steady stream of pure Primordial Power and Thunder Power.
