I made a pokemonstuck Jade to match the John!
Well Jade of course went on her pokemon journey before John, but she didn't want to make her pokemon battle. So she became a breeder. Along her adventures, she met Jack Noir (Spades Slick?), who was head of a failing DayCare business, and decided to stay and help out. She occasionally goes out and does some contests. Whenever she does travel, she makes sure to visit home, and sometimes even goes out to hang out with Dave, Tavros, and/or Karkat.
Though she owns at least six pokemon to do contests with, we only really see her Growlithe and Umbreon, though technically the Umbreon is shared between her and Jack. The Growlithe is fiercely loyal to her, and gets quite depressed if she leaves the room without him.
She's a fairly good trainer, and her pokemon could pack a punch, but she really doesn't like seeing them get hurt, and therefore avoids battle when possible. She of course makes some exceptions when justice needs to be done, but yeah.