The powerful aura of death, the destructive pressure, and the blood-red eyes ... Judging from all of this, Gongyang Feng wasn't himself. He had been possessed by the consciousness of the expert hidden in the Death Palace.
Moreover, the speed of possession was extremely fast, exceeding their imagination.
Usually, experts would only possess their primordial spirit and will. Without my primordial spirit and will, they would be much weaker.
When their primordial spirit and will were at their weakest, most primordial spirits and wills would not be willing to take the risk of possessing someone. This was because the chances of them failing were extremely small. Not only would they fail to possess someone, but their primordial spirit and will would also be devoured by the other party.
Unless it was absolutely necessary, the primordial spirit and will would not possess the body.