Sky Magic

Submission for his latent element!

Kaide primarily would use Sky Magic to move the wind around him or mess with tempurature and humidity, you can do a lot with that. Like putting out his lantern.
If it's possible to somehow make clouds dense enough to ride on, or wind strong enough to let him fly around, he will absolutely do it to make getting around easier.
It's pretty handy even if he tends to just keep it simple and use the magic for random day to day tasks.