He's going to learn Puff in the future? Now that's interesting. It's not exactly a common spell!

"Yes, that would make sense. There are many exceptional people here, but that doesn't mean they can all use magic! It seems to be an inherent ability of the dragons of this world, and now that extends to us, too." He frowns and crosses his arms. "It's too bad about the timing. Now's not a great time to be experimenting outside."

Turning into a dragon on purpose without knowing how big he'll be would be... inadvisable to do indoors.