Kero nods. "And they get more powerful the longer they're active for. If Windy went wild for a year, there would be daily hurricanes all over the world."

Windy does not challenge this assertion.

"They can be stopped, though, if you capture them, and used in a controlled manner if they accept you as their master," he adds, saying the last part a bit pointedly.

"That's bad! How do you do that?"

"With your magic levels, you need a special artefact to capture them. They'll accept you as their master if you prove yourself to them, develop a good relationship with them, make them trust you. Signing your name on the card also helps."

"... I'm sorry, what was that last one?" Theo asks, a little bit sweetly.

"If you sign your name on the card, you bind it to your identity, and it's harder for it to do something against you."

Sadde nods. "That makes sense. I think Change likes me."

"Oh, of course it is. Of course it does. Anything else you might think to mention, that you've perhaps forgotten to tell me?" He grabs out a pen and writes his name at the top of Fly's card.

"Well, if I could remember what I had forgotten I wouldn't have forgotten it," Kero says reasonably.

She peers at the card. "So what does that one do?"

"It's a huge bird that just sits in the middle of a field, not listening to me, apparently. And it also makes my staff sprout wings."

"It makes things fly, not as precisely as Float but faster. And Theo hurt its feelings."

"You have a flying staff? Can I see?"

"Sure."

He taps the card with his staff.

Whoosh! Winged staff!

"Ooh! That's so pretty! And you can fly on it?"

"Haha, yeah, if I wanted to sit on a pink, winged, stylised broomstick."

"You can fly. And you don't because of the colour?"

"Right?"

"And the beak, and the wings, and it's not exactly the most comfortable way to fly."

"Fly cushions the staff."

"You heard me about the beak and the wings, right?"

"Oh my god it's no wonder it doesn't like you! Sshhh don't worry Fly he doesn't know what he's talking about, he's just a silly little boy who's not secure in his masculinity."

...maybe the wings move a bit in reaction to that?