Demonic Sect cultivators, or nurturing a cultivator into a Demon Cultivator.
That way, they can dump the goods of this world through the host and bring their own cultivation resources.
Xu Xuan once again activated the formation and returned to the great hall. He cleared out the corpse of Ghost Eye and, after contemplation, decided to keep the eye located in the palm of the deceased.
This thing was somewhat useful and wasn't exactly a human eye, but an eye formed by the fusion of spells.
Boom!
The door closed again, and the room became dimmer.
Xu Xuan once again pondered the future of this world. First off, the ceiling of this world was quite high, so he couldn't leave for the time being. Secondly, there were some strong individuals in this world, but he didn't know the extent of their powers. Considering the strange and bizarre spells, Xu Xuan thought it best not to flaunt his presence as he had in the previous two worlds.