The first poke I caught was the tutorial fire fang poochyena!
I swapped it with a 3 star, run away, impish, sleep talk poochyena, named Gnawy though later on. (got rid of sleep talk..)
And that one never left the party, and basically nearly soloed the entire game no problem this far! (except Brawly, but if I had managed to get play rough on him it would have been a very different story.)