Beldum

Beldum (Japanese: ダンバル Dumbber) is a dual-type Steel/Psychic Pokémon introduced in Generation III. It appears as a blue, robotic creature with a red eye and a long body featuring three claw-like appendages. Instead of blood, Beldum uses magnetism for movement, communication, and attacks. It typically roams alone, but may gather in swarms, using telepathy and magnetic waves to move in sync. Beldum floats using its own magnetic field and anchors itself to cliffs with rear hooks while sleeping. It evolves into Metang at level 20, and then into Metagross at level 45. Beldum are rare in the wild, usually found in rugged terrains.