Groudon

Information
While they aren't known to evolve into or from any other Pokémon, they can go Primal Reversion and become Primal Groudon if they hold the Red Orb.

Groudons possesses the ability to expand continents. In ancient times they came in conflict with Kyogres, a Pokémon with the ability to expand the oceans.

Locations
In their real home, Groudons live in rocky caves, lava places, underground, or in large magma chambers.