Always good to see someone excited to talk about this kind of thing. Claude knows the subject of power and magic can be a touchy one, so he's glad to see the kid so excited to show off, and not just because it makes getting answers from him about his powers easier. He jolts a little when the sword grows to full size, but grins, watching the boy's form. He does seem to know what he's doing, to Claude's partially-trained eye.

"That does seem pretty convenient," he says. "Much better than having to haul a weapon around or worry about getting disarmed. Can you make anything else, or is it just blades of grass?"

(He looks maybe a little too pleased with himself for the pun.)