He is the king of the BLACK dragons. Not metallic dragons. thats very true actually, regular dragons and metallic dragons are not related, in fact I believe the metallic dragons were created by someone, so it would make sense that they would be in noway tied to the regular dragons. But either way I think the kbd is becoming too weak, and that fact that another non-boss monster has surpassed it only proves it. It's becoming difficult to call the KBD a super boss. Those ancient pages all indicate the metal dragons, thought dragons at heart, were somehow enhanced or manufactured by a higher being. This could indicate that the kbd is still the king of all NATURALLY occuring dragons.