As the State Preceptor said, refining the Red Scale Heart was best done with both Star Power and Divine Soul Power simultaneously, for better results, albeit taking a bit more time.
If one could refine it with Divine Soul Power alone, the speed would be the fastest, and one would also reap all the benefits of the Red Scale Heart.
However, to use Divine Soul Power to refine the Red Scale Heart, one had to be at least a Star Casting level in Divine Soul.
Xu Jin definitely wouldn't admit that he had reached the level of Star Casting in Divine Soul.
But when he refined it, he used only Divine Soul Power.
The sensation was magical.
At the moment when Divine Soul Power surged into the Red Scale Heart, Xu Jin sensed a chaotic breath and a weak Divine Soul essence.
That must have been the remnant essence from the previous Sacrificial Refiner.
