Capítulo 1328: Bring Out Your Champion.

The second part is not possible because the Will of the plane is not willing to speak with him much less exchange helpful information with him. 

So what he has to do to get the information he needs is clear. He just has to gut the Will of the plane and examine its entrails. It is a figure of speech but what he intends to do is not far from it. 

He said in anticipation, "I will hold it down, open it up, and look inside of it. We will see how it can remain snubby then."

The next thing he did was to cut out pieces of his soul. These pieces are connected to him through a thread thanks to his spark of consciousness. But they are without memories and soul imprints. 

It was very easy to do. It wasn't painful at all because he has mastered control over the spiritual matter that makes up the soul. The only advantage is that it weakened his soul. But that wasn't a problem for him since he can now devour other souls without issues.