Yes, fantastic. Doesnt mean he charmed the demon or that he can charm others.
Its a demon stare, not charm demons.
Anyway, they can keep that and change it into something more useful.
Or do something else, which would also fit with that origin story.
He explicitly states he stared the demon into doing his bidding, so I don't see why he wouldn't have some kind of powerful control spell as his Source skill. And I mean it'd be a pretty useless ability if it only worked on one specific demon, don't you think? I don't think innate magic is ever that specific.
