Udyr
(This is a smurf account), I ask that you guys read this fully. I've got a few ideas, some inspired from Jojos Bizarre adventures, Udyrs spirit guard skin comic, and after from looking at champions like Lee Sin, Elise, etc.
Having played Udyr back since mad stone build was a thing, and being able to get Baron prior to it being spawned after at 18, I honestly love this champion. Although of course as a meta shifts, some older characters fall out or might be seen as clearly weaker than the others. One thing I want is Udyr to be strong, but with the way his kit is designed he doesn't have that leisure due to how imbalanced he can become with one switch of a number on his abilities. Before I get into my idea, I want to make sure he kept this sole thing about his kit; his animal stances.
What I have in mind is that when he activates a animal stance; per say Tiger. Q, W, E become Tiger related abilities that do something unique. And activating R cancels out Tiger stance, in which then after the forced 2 second delay like he currently has, he can activate something like Turtle, in which his Q, W, E would become replaced with unique abilities related to that stance, and so on so fourth if that makes sense. It'd also give phoenix the chance to be this trump stance, which would also replace his Q, W, E, and be able to be canceled and what not; This is a vague post, and I have not thought up of what the unique abilities would be for Q, W, E upon activation.
Maybe this might inspire something for a Rioter, or for any normal person to come up with something unique since I want to keep his core theme of revolving around his animal stances. Feel free to suggestion and add onto the post.