New one, a lil iffy but I love her.
Audrey, a budding trainer and aspiring coordinator, her ace was Smeargle and she'd travel looking for the prettiest moves to Sketch. Went deep into a Carbink-infested cave system looking for a Diancie in the hopes of copying the fabled Diamond Storm, but she wasn't the best spelunker and ended up falling into a Steelix tunnel, territorial ones. Team tried to defend her against one, she ended up struck through the skull by Metal Burst and died before the gang could escape to the surface.
Apparently she had enough unfinished business for her spirit to stick around a while, and visiting home realized her Decidueye could still see her, being a Ghost-type. So she resolved to remain with her Pokemon beyond death and continue training with them, and hopes to find a way to somehow win a Contest while being invisible, intangible, and well, dead.
Her other Pokemon right now are a recently befriended Sandygast and a Munna she already had, which only sees her in its dreams. In the RP group she's in, no one is sure that she exists yet, but she has appeared as a vague apparition to those who have done things that formed a bond unintentionally. Other than that, her Pokemon acting as an oddly coherent Triples team is the only hint anyone really gets. Ghost Pokemon can all see her, Psychic types and psionic humans sense her faint presence, and Dark types get uneasy around her and if they accidentally run into her or discharge an attack nearby, it will hurt her. She can also appear in some "spooky" settings such as haunted houses, seances, and mirrors in dark rooms where her name has been chanted thrice. She can't influence the physical world any more than slight disruptions of TV static, and she can only possess people who are absolutely drained of willpower, or had none to begin with.
As for the edgy Decidueye, Artemus, I wanted to make him look more like a ghost, or a lich or something. The plumage comes partly from having a Braviary father.