This spell is often cast prior to major ceremonies to prohibit unwanted psionic intrusion. When cast with the aid of a combine spell, the area of effect is extended by 5 feet for every additional priest in the circle.
The material components of the spell are holy water sprinkled around the area to be protected, the priest's holy symbol, and a specially blessed weapon associated with the caster's faith.
Notes: Very rare spell. (Updated from Polyhedron Magazine.)