Guardian

Priesthoods charged with the protection of holy places often have access to the guardian sphere. Spells that help a guardian to perform his task are included as well as spells that create or enforce magical barriers over a person or area. These spells are more active than protection spells because they create an actual guardian creature of some type.

Note: Guardian as described here originally appeared in The Complete Priest's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.