User blog comment:IamJakuhoRaikoben/Chapter 497: The Winter Mage, Review./@comment-24951162-20160810202218/@comment-1776824-20160815194532

While I agree with Misk completely, the anon has a point. Silver being the biggest, most recent example of Mashima's inability to be consistent. Hiro has admitted to having trouble with Silver's true identity and jerked back and forth between Silver Fullbuster and Deliora until he had no choice but to settle on Silver Fullbuster, as Gray could not become the Ice Devil Slayer if Deliora was the one actually in control of the body.