you were one of many martial artists, specifically a kung Fu master. That's what made you a formidable foe in the Chameleon eyes. She knew that in order to prove that she's not the one to mess with, despite her weak appearance, she took some notes out of Po's style and went on an uncontrollable feast. It altered her greatly, making her significantly more plump and soft, but beneath it were skills and professionalism of a cunning shapeshifter that could easily take form of any previous kung fu master. That's why then you got the invitation to the juniper city from her. You were slightly skeptical, but went there nonetheless. You finally arrived at the training grounds and there she was, in her full glory, already anticipating your arrival. She walked to you having a smirk on her face.
It's great to see you in person, my friend. I have invited you here for a reason. I need a sparring partner and since you weren't occupied with anything, I thought that you would put your skills to good use.
Chameleon's expression was one of eagerness. But you were confused, not understanding how in the world she could possibly be strong enough to handle you, especially in such a soft and round form.
Will you humble her? Only time can tell.