Has anyone killed the ghost that spawn at Mephisto after he dies?

I read on Cain’s corner its possible as the other information is useable. I just have not found anyone who has admitted to killing them or has proof. I just want to know if its possible

Just as possible as getting mew to spawn at ss anne

The information stated is True, After confirming that the 3 other Bullet points are indeed possible to find, its may be possible with the right set up. Would thorns or a proc chance work better?
The stats I found state the Restless spirit do show 90 res in all categories. That’s speculation though, If the object or monster is defined as a “evil force” not “Restless spirit” could I reasonably assume I should be using those stats?