Spirit-Ridden

Spirits need physical bodies so they possess humans without a second thought, some, if they need to hide, will also possess animals. Those possessed become Ridden. There are two types of possession, being Urged or being Claimed
 * Spirit-Urged - A spirit nudges the host's desires and impulses like a backseat driver.
 * Spirit-Claimed - victims of outright possession and control. The spirit directs every movement of its vessel, and its more direct control can affect its host’s very flesh.