Well. At least your Black Dragon looks cooler, I guess. Mine was a bit haphazard so if you wanna do it, that's cool. My only gripe is that the higher level stuff (Diseased Breath, Toxic Breath, Impure Breath) are a bit useless against a Warforged, or any of the many ways of being immune to being sickened/nauseated. Might wanna give them a secondary effect that's a bit harder to get around.