But on the other hand, that's sort of what the Reality Room does. Drop a Suvian in there, and everything that doesn't make sense no longer functions. This may have the side-effect that the subject can no longer survive, which is why it's been used as an assassination method a couple of times. That works by isolating the Suvian from the Word Worlds so that their ability to manipulate narrative-based reality is denied. I don't know if there's a way to make that portable.

I think the reason a typical exorcism wouldn't work on a Suvian or character replacement is that, if you're going to drive out an evil influence, there has to be an influence-ee left behind that's worth saving. The whole conceit behind Suvians needing to be assassinated is that there's nothing salvageable about them. Suvians aren't under an evil influence; they ARE the evil influence. Charge lists exist to determine that this is the case, and that they're not just a mediocre character that could be improved with a bit of work.

~Neshomeh