VIDEOS:
Body transfer
Russel's plan was to use a Chinese spell called "Chong Sang", which involves the use of Mia's blood since she's a hybrid daughter of a Warrior and Guardian. This also... involves the use of someone related to him as (a biological) parent and a child.
In this case, it involves jumping into Kerwin's body. And it horrifies Zhilan. And Nicky.
Example of:
Familial Body Snatcher