his current advantages include "being a lich, so only his phylactery is actually vulnerable to damage", recently-obtained contact-telepathy, and the fact that a harmless ghosty (Kul Elna) is willing to try to fetch people to help
but there's at least one that's mimicking Kul Elna and repeating everything he's ever fucked up in his ear and it's like. "I know you're not the real Kul Elna, because they can't talk - fuck no stop reminding me why they can't talk"
tbh I'm not sure how one would go about getting the ghost out to begin with tho, like. do you stab the body with something iron until the invader exits the premises (since that wouldn't kill RS currently)? do you just throw salt at RS until the ghosty(s) exit??