[quote=@Pirouette]
I was picturing, potentially, a high level enchanter that served the roll of providing significant buffs to guild parties before they left like last rites. Ergo, maybe the Guild Chaplain since I have some high holiness theme in mind.

Someone that can also be converted over to a Chapter rather easily too if that role needs filling. 
[/quote]

If they do end up becoming a Chapter Keeper, I can't help but imagine their floor appearing like Irithyll from Dark Souls 3.