Ryusenka
I feel if they try and clone Ryan it wold result in a human-dragon hybrid with not many benefits.Like senjutu is a tehnique not transmited by blood, dragon slayer magic you need someone like Grandeeney to teach how to use it, and Dovahkiin skills is mosty if not all on the dragon soul wich should not be transmited by blood Tl;dr Cloning Ryan wold result in a hybrid with out any of his powers