The pills can be refined, and the general skills are not difficult to obtain.

but this demon is very difficult to kill!

let alone the crystal nucleus in their brain.

I don't know how many revisionists want to get a crystal core, but this thing itself is valuable and has no market.

but when Xu Feng took it out, everyone else was excited and said, "young man, can I sell the crystal nucleus to you? It's easy to discuss how much money is needed. Even the Kunlun sect's skills and pills can be given to you! "

as for the color of the crystal nucleus, they are not clear yet,...