Y'know much as I love Kaze for being the cool, reliable older brother figure, I don't think we really appreciate enough that he is, in fact, a lil' shit.
Dude spends the entirety of his Support with Nyx is just him trolling and tricking her. Not in a malicious way, mind you, but to make sure she has company in her hobbies and knows she doesn't have to isolate herself.
It's extremely characterful and adds a dimension to his character I don't think we see in his other Supports. Which is a shame. It woulda been great to see him and, say, Elise bonding over being the youngest in their families, the pressures that entails and how it changes their perspective on things that the older characters just wouldn't get.
But above all, I really really really wish we could've seen him become the prank monster that terrorizes the camp. It's what he was always meant to be.