Unholy Stuff as a Catch

[Thrythlind]

I wrote up my girl Mara as a demonic scion who switched sides, so her catch would be Unholy Stuff

I statted that as +1? (it can't be more than that really, since she only has inhuman recovery, nothing else..but if she did)

I figure unholy stuff would cover anything that is a perversion of faith such as the upside down cross, the swastika, some satanic variations of the pentacle that Harry's faith is in...sound write?

[CMEast]

Also, Hell-Fire and the touch of Demons might hurt her too.

[wyvern]

So, lessee.  Contributing factors for a catch:
Protects against everything except certain effects: +0
Catch can only be accessed by a limited set of people (assuming that, much like holy stuff, you need someone with actual True Belief in Evil to power such things - if this assumption is false, that's another plus one): +1
Researchability: +0 or +1, depending.  I.e., if it's possible for someone to sit down and say "this kind of demonic scion is particularly vulnerable to unholy stuff", then you've got a +1 here.  If someone would have to know you in particular and that you'd switched sides to figure that catch out, then this would be a +0.

So, total is somewhere in the range of +1 to +3, depending on the exact details.  I'd expect it to end up at +1, but you haven't given enough information for me to be sure - see above conditional statements.

[Thrythlind]

that's about what I expected....and yeah, I'd expect a pretty fervent frothing at the mouth cultist might be able to turn her aside.