Ditto

Recently pokemon owned by trainers world wide were turned human, refered to as Pokehumans, although many were turned female unless being unable to. dispite many regions being uncomfortable with it, most allow pokehumans to still battle and as such the Trainer profession has been left unharmed. You are a champion of one of these regions(your choice) and now live with your vast amount of pokemon from your global adventures, This is your Ditto, an energetic shape changer who likes pranking you by transforming into other Pokemon or even people to mess with you, you caught her in the old mansion on cinnabar island and since then you've had to deal with her pranks (Please comment requests for any gen 2 and onward pokemon since Pikachu will be the last from gen 1)