Five evolutions all at once? That seems excessive though @_@
xD I suppose if everyone's okay with evolving their characters, but that's a big push. 

I don't know if I think balance is a big enough issue to necessitate that type of change. It's not like he's gonna be fighting PCs a lot.
...Except for right now, but y'know.

And depending on how you run combat, there's more to a fight than which moves you know. For example, Kick is definitely a one-trick pony. Nail him with a burn effect and watch him squirm.