Magcargo is a limbless, snail-like Pokémon consisting almost entirely of bright red magma. Its oval eyes are large and yellow with small pupils, and extend upward from its head. It has a bulbous snout and a wide mouth, with two drops of magma dangling from each side of its upper jaw. Magcargo's back is protected by a gray, spherical shell composed of hardened, but brittle magma, forming irregular lumps and plates. A streak of fire leaks from the side of its shell. Magcargo's lower body is amorphous and covered in bubbles of magma. Magcargo's internal body temperature can reach over 18,000 °F (10,000 °C), causing it to evaporate water on contact. It can be found in mountainous regions, and has been living in volcano craters for tens of thousands of years.