The black Rayquaza is a Legendary Pokémon that according to myth, once obeyed the ancient adventurer. When Roy's Elder
was young, he found the Ancient Poké Ball on the beach and when Roy
wanted it, he gave it to him. Neither of them thought there was actually a Pokémon was inside it. The Ancient Ball shined together with Liko
's pendant and then was released. It attacked and caused the Explorers to retreat.