Foster doesn't have anything to say that. If there is magical energy concentrated enough anywhere in his world, it's not on the centre plane. Dragons themselves are the bastions of magic there, the pillars supporting the entire magical structure. When you use magic, you're borrowing from the power of a dragon's mere existence.

So his expression is just kind of blatantly dispassionate until Syr asks about candles.

Then he looks... amused?

"....yes?" His tail swishes slightly; he cocks his head, regarding Syr somewhat out of the corner of his eye, the ghost of a smile already fading as he glances away. "Lighting candles, freezing water... simple state changes. Nothing you can't do with a lighter or a freezer anyway, it's just something to learn on."