ok i try to block the nerves in the brain that deal with the bloodline in your shadow cloneonce you get this down now note that now you must seal the blood line abilty in its whole .Now you must get rid of the the part of the barin that lets the user use that ability.with your chakra bonded with there blood it travels inot there head nad you can detach it to bloock those nerves form reciving the bloodlines inof and cause pain to them if they try and use it.