[quote=@Lurking Krog]
[@Vertigo] I believe blood cleric is offical D&D content, albeit through CR. Let me try to find it and I'll get back with you on it.

EDIT: Found it pretty quickly. I think it will be ok for this. Did you have a deity in mind for this?
[/quote]
Don't have a deity in mind yet, no, so I'm open to suggestions if you got any! Otherwise I shall be consulting Google once I get there.