>>13934140>>13934032When Kyurem incorporates either of the other dragons, it becomes very similar to it. Base Kyurem also looks almost skeletal, and without facial features, with its most significant features (tail and wings) being linked to assimilating another dragon.
The original dragon most likely would lack any kind of frozen body part, have Kyurem-like legs (digitigrade instead of plantigrade) and facial structures (yellow scleras and irises, the single yellow horn in the forehead, the mouth shaped like Black and White Kyurem), as well as the shoulder cables that connect to the tail turbines. Then, pastiche of Reshiram and Zekrom elements, more black and white skin than grey (if present), and, in contrast with the other Kyurem forms, symetrical. Also, it'll probably have a vertical spine instead of the horizontal one of normal Kyurem, and more developed arms as well (the arms and tail are the most drastically changed parts when Kyurem assimilates somebody).
At least, that'd be my opinion. And I'd really like to see this Pokemon, specially if it was number 450.