User blog comment:B214/Question and Answers 4/@comment-97.103.233.248-20150324035009/@comment-97.103.233.248-20150324170658

Thanks for the info I think I thought of new theory where issei replicated devil magic similar to how magicians(even though magicians are still human)do so considering he was a devil he could still achieve it

But I'm starting to think that it's just issei exclusive abilities.