What I found weird was that Wyll said that serving a devil means you deserve death...
And Advocatus Diaboli is a duty during the beatification process of the catholic church. That person throws every argument towards declaring someone a saint into doubt and basically argues against it.
From there it became a term for someone who basically takes the role of an opponent in a discussion. Basically disagreeing to test the arguments, not necc. because they really disagree. It means Devil's advocate.
Pretty sure this is just a misused word here. Because Latin sounds like the Hells or so.
