User blog comment:B214/Question and Answers 4/@comment-24866657-20141019162746

When Issei got his new body in vol 12, why could he use Devil power? Dress Break and Bilingual for example are made from Devil magic (Desire), when he finished Jeane he's only a humanoid dragon, so why he was able to cast his two signature spells on her? And much stronger due to her using Chaos Break?