In my RP thread "The Dovahthur Returns" is a scaled man with dragon wings as the antagonist and also the brother of my character. If anyone wants to take control of him then you may. You may also just add your own character to try to take him down or be one of his lieutenants.
Note: If you don't want to be so over-powered that any Aedra and Daedra can't defeat him then don't take control of Dovahthur.