Patronus

A Patronus is a spirit animal that acts as the sorcerer's personal expression of their innermost self in the EMPATH: The Luckiest Smurf story series. The Patronus is usually cast to ward away evil spirits that may surround the caster or anybody close to him or her, or it can act as a guide for those who are in need of one.

The Patronus is based on a similar thing from the Harry Potter book and film series.