Guys, Stick is a feruchemist. (Or at least a ferring)
Let me explain.
Earlier today, I was thinking about the benefits of tapping Identity. Doing so, as I understand it, will make someone more confident in who they are. Then I realized that Stick is the being most confident in their own identity, repeating one thing over and over
I am a stick
Stick was so aware of who he was that he could resist being turn into something he wasn't.