RavinRay
Explorer
I forgot to mention that we could add a sidebar for using the cobra dragon in an Oriental Adventures setting. If using that book, cobra dragons can have the spirit subtype modifier and speak the Spirit Tongue as well as Draconic. If the adventure's cosmology includes the Spirit World, maybe it can plane shift to the Spirit World at will like lung dragons (though it might not be necessarily be part of any Celestial Bureaucracy the DM is using).