User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-4823600-20130209152029/@comment-115.133.206.134-20130209174917

Then he wouldn't be able to use GIVE on Ascalon personally i like B214's idea it makes it feel like Issei can use Ryuuteimaru in many ways imagine if Ryuuteimaru can use the powers of other Dragons and can combine with Issei like in Volume 12 when he combine with Great Red.