Exorcism

Drives a possessing demon out of a host. Standard incantation takes 2-3 minutes; expedited version is less reliable and takes 30 seconds.
A more ceremonial version of the standard incantation can be performed by a demonologist or an ordained priest (sometimes a rabbi, though this is rare). These kinds of exorcisms are monitored by the Holy Roman Catholic Church and the Holy See usually dispatches a chosen emissary after investigating the claims of the petitioners.

Related Discipline

demonology