Weird Arcana - Excommunication (New Spell)

Ok, this one is definitely not weird. I was writing some divine-style curses (something that I hope can be become a future post) and this came up. It is not something that makes much sense in the typical multi-pantheon settings of Pathfinder – after all, excommunication traditionally presupposes a sovereign church controlling a large area – but it is an idea that I always liked.

Excommunication
Transmutation [Curse]
Level: Cleric 5, Druid 5, Inquisitor 4, Oracle 5
Components: V, S, M (burning incense), F (a set of prayer beads or other prayer device worth at least 1000 gp), DF
Casting Time: 1 round
Range: Close (25 ft. + 5 ft./2 levels) or see text

Target: One non-divine spellcaster creature (including ex-spellcasters)
Duration: Permanent
Saving Throw: Will negates
Spell Resistance: Yes

You summon your authority as voice of your deity to banish one creature from the sphere of the divine. This potent curse makes the target forsaken to the gods. He becomes immune to any beneficial effect originating from a divine spell or magic item. Harmful effects still work normally. Spells like detect evil or detect good cast on the target reveal his condition as forsaken by the gods. This dweomer is usually reserved to diabolists, demonologists, atheists and other servants of profane forces.

Excommunication can be cast using the same range and rules from scrying, but its casting time becomes 1 hour and it must be cast inside a temple of the cleric’s deity.

Ex-spellcasters (like ex-clerics or ex-paladins) can be targeted by excommunication.

The curse bestowed by this spell cannot be dispelled, but it can be removed with a break enchantment, limited wish, miracle, remove curse, or wish spell.

Excommunication is powerful ability and if misused by the spellcaster the spell can backfire against him (no save), at the GM’s discretion.

Finally, again at the GM’s call, it’s possible to suppress partially the excommunication if the target accepts a geas or similar oath to serve faithfully a divine rival of the spellcaster’s deity. For example, if the Thunder God and the Giant Snake God are enemies, a target excommunicated by a cleric of the former can seek a priest of the later, to be initiated in the Snake God’s church. This target, then, would be affected by beneficial spells from Snake God spellcasters only.