The more I think about it, the more I believe it should stay clear of the core mechanics. It should be simple standalone mechanic that seamlessly overlaps with the core rules. As I mentioned before, you can go wild on what benefits and drawbacks they give you on realm levels.
Perhaps, Blooded should be like a 7th attribute, one you must point-purchase like the others? So you can invest on your regency or on your class attributes.
Perhaps, Blooded should be like a 7th attribute, one you must point-purchase like the others? So you can invest on your regency or on your class attributes.