An idea i had for a Gym Leader/ Elite Four, they would be a double battle trainer and idk what type... ('7')
So the back story is a pair of twins Trinity and Charol, go looking for rare Pokemon and stumble upon the cave of Darkrai, Trinity makes it out ok but sadly Charol falls to Darkrai's nightmares. Determined to give her sister another chance, she hunts down a Manaphy to swap their hearts but it backfires. Forcing her sister's consciousness into hers, making them the same being.
Her voice shifts when the other is talking but Trinity still has full control over the body.