C4977 Blood Essence Stone

Even now, Yin Hesong still had a lot of sacred beast level pill that he could not refine. His ability was not enough.

Saint Beast level pill was truly too many. Some of the difficulty was extremely high. Even ordinary God Beast level Alchemist might not have the ability to refine it.

Moreover, even if he could refine it, wanting to refine it and strengthen it was even more difficult