Diancie and the Legend of the Fusion Crystals

Alex was not your average kind of guy: Around 16 years old, lives with his grandma, and doesn't know where his father is. After beating his long time bully in a pokemon battle and then getting beat up by him and his friends, Alex found a flyer that was looking for another assistant for the Pokemon Professor, Professor Ginkgo. He's accepted and learns that there is a mythical pokemon that guards ancient crystals known as the Fusion Crystals, which can fuse two or more pokemon into one entity. Alex later discovers that there's an evil team out there using these crystals to wreck havoc all over Kalos, and he must stop them at all costs before everything he once knew would be destroyed.