The Tectonic Plate pokemon.
If two of this pokemon fight in the earth's core. A large earthquake can occur, even create Volcanoes when they fight. This pokemon actively moves almost every second of the day. They live either within the core or the Earth's mantle. Very rarely they come to the surface of the land. The creature has lava inside its body, it releases heat from the flame coming out of it's heading. It can release lava or stream out of the little volcanoes on it's back. Its body is hard rock.