When the blinding flash of light disappeared, Moby removed his wings that he instinctively used to block the flash of light that was released from Nags's direction.
He did not know how he even managed to move his wings as they were not part of his body from before and completely foreign to him. Yet, somehow, it was as if they were completely programmed into him. He somehow had absolute control over them like they were an extension of his own body and like he always had them which made him inwardly smile since at first he thought that the wings would have been a hindrance and end up getting in his way.
When Moby removed his wings from blocking his vision, he looked at Nags who was now fully transformed, a small crater at his feet from the energy output of his transformation.
As soon as Moby laid eyes on him, he could immediately tell what animal he was, making Moby think that it was extremely fitting for Nags's ability.