Heatran is a reddish-brown Pokémon resembling a tortoise and a ram. It is dotted with orange and gray spots, and it has metal bangles locked on its legs. Its four claws on each of its feet are in a cross formation. These claws allow it to dig deep into walls, and its feet allow it to stick to a surface, so it can hang and climb from walls and ceilings. Heatran has a gray underside, and its face is covered by an iron mask, with red-orange eyes uncovered. Whenever it is seen with its mouth open, an orange glow emanates from inside it. Because of its intense body heat, certain parts of its body are melted slightly out of shape. Boiling blood, like magma, circulates through its body. Heatran is a fierce guardian. Without the power of the Magma Stone, Heatran would rampage and cause the volcanic crater where it dwells to erupt. Heatran is the only known Pokémon that learns Magma Storm.