C407 Refining a Rank One Aurous Core

Facing the hundred Medicine Attendants who were only at the tenth level of the Heavenly Gan C realm, he had an idea. He opened his mouth and asked the air in front of him: "I still do not understand one thing, they have the same cultivation as me, but what kind of magic power did they use? Can you give me a hint? "

However, he didn't guess wrongly this time. Originally