Pimpgangster, perhaps you would be so inclined as to take this Growlithe I found as your Pokemon? Her name is Ren.
Ren is a feisty little Growlithe, and has quite the big personality - however, she's got a flaw or two.
As a Growlithe, she is fairly physically weak, you see, mainly due to her genetics being awful for physical bulk; as such, she cannot use any physical attacks at all, for the time being.
Ren once had a Natu as her best friend; he was killed by an Ekans, however. Because of this, Ren refuses to fight any bird-like Pokemon, as they remind her of her dearly departed. She will attack any reptiles she meets in a fiery rage, however, and she must be sent out against any you see, to either solo or be defeated by them.
Ren must evolve, though, and evolve she will. There are no restrictions on this. Ren's evolution relieves her of her physical move-ban, as the stone has washed away her bad genes; however, she is now very conscious about her speed. If she is paralysed, she must be healed immediately or switched out, unless she is the last Pokemon in the party and no healing items are owned. She is also scared of electric attacks - mostly for this reason - and, as such, will only fight electric mons if she is the last member of the party.
If this challenge is within your difficulty level, good luck.