C1164 Goldtooth Rat King
If he were to cut it in half, it would be impossible for it to survive, let alone possess another body.
"Master, it isn't impossible. There is an ancient array formation that can be used to refine puppets. It is like separating one's own soul and pouring it into a puppet that has no life will. The puppet will have its own will."
He had indeed heard of the puppet refining technique before