The power of the incarnation was far inferior to that of Gusha's original body, but for that very reason, there was a possibility of taming it.
The serpent skin shed by Gusha was lifeless skin without sensation before the will was transferred, since it clung to the surface of Gusha's body and merged with its flesh, making it very difficult to detect without close inspection.
The Medicinal Plant Gatherer had stumbled upon Gusha's subtle movements by chance, due to a fortunate mistake.
After that, he immediately devised a plan, he obtained a Shadow Fur Ball from Ling Long and then surreptitiously transferred it beneath that dead skin. Utilizing the Shadow Fur Ball's ability to cut and Devour Shadows, he began to gradually eat away at the shadow of that piece of serpent skin, allowing the Shadow Fur Ball to quickly grow by absorbing Gusha's power.