In my RP thread "The Dovahthur Returns" is a scaled man with dragon wings as the antagonist and also the brother of my character. I need someone to take control of him. 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.