Here's my problem, I have a nun who is set against a man possessed by spirits (not the drinking kind) and he's not harrowed. Her beliefs will not allow her to outright kill the person, so she is more inclined to exorcise the demon within the man. I figure that she should need a priest, but I think she should be trained somewhat as it is, so if she can't get an assistant she can give it a go on her own.
Thing is, I can't find any rules on how to handle an exorcism. I figure it should be a contested roll - her faith vs the demon's spirit, but i'm not sure exactly how to go about it.
Any suggestions?
---marshal dan