The Pokémon journey - XYZ

Y/n was a dark type gym leader and she had a ceruledge, minikyu, Greninja, umbreon, Absol and Hydreigon. One day ash, Serena, Bonnie, and Clement. Came into her gym to battle her and after that battle, she joined their journey.  and Lilly had mega evolution stones for Greninja and Ceruledge