RoN Parasite1

A product of Viktor's bizarre experiments on dark alchemy, these vile Parasites were created to serve as "vessels" for the mad doctor to switch from body after body once the old one wears out. The parasites would force the new host to ingest it, carrying over Viktor's intelligence and personality onto the new body and dumping the host own consciousness onto another body.

Yeli was able to help Josh regain his body by sending him to the Dream Realm, where he confronted the Viktor/parasite and managed to defeat it, unfortunately at the cost Yeli's own life.