Groudon

Groudon is a legendary pokémon known as the Land Maker. He was created along with Kyrogre by Dialga and Palkia and was put in charge of creating the Earth's continents. He was first introduced in Chapter 7 of Stun.

Groudon was one of the first legendary pokémon to be possessed by the darkness. After which, he spent most of his time beneath Cinnabar Island in Kanto, causing the surrounding area to be so hot that the sea literally boiled. After being freed from the darkness's grasp, he explained that using his power so consistently for so long was somewhat painful.

Groudon was one of the many legendary pokémon to be captured by humans between the events of Stun III: Alola! and Project Stun.