Below the earth lies the Diamond Domain, home to many Carbink, where the Mythical Pokémon Diancie reigns. The Sacred Diamond that feeds the realm is crumbling, and Diancie lacks the strength to forge a replacement. While searching for aid from the Legendary Pokémon Xerneas, Diancie meets a band of robbers intent on seizing its crystal‑generating might—and in doing so, they unleash the Legendary Pokémon Yveltal from its cocoon! Can Satoshi and his companions help Diancie unlock its true potential, halt Yveltal"s devastation, and rescue the Diamond Domain for all creatures in the valley.
