User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-67.176.158.104-20140207023318/@comment-67.176.158.104-20140207024437

True but he could start using it in the future. He's a lot stronger than he use to be. Especially with Orphis and the Great Red's power flowing through him. He could use his dragon power as a source of energy for the transformation instead of the life force. And he technically is a dragon so maybe he would have more control of it.