Creatures of the Night

[Myrddraal]

I'd agree SSJVegeta, traits already exist saying "Secret Heretic" or whatever.

As for new skins, you can't have new skins appearing for just a set of generals with a certain trait, you can either have a blanket new skin for generals or no change.

I think epithets are a good way of distinguishing the vampires though. Maybe you could add some even for the 'secret' traits. Something like: "Boris the Secretive" or "Boris the Dark" would become "Boris the Bloodsucker" if his secret was revealed