Magnet Pull (Japanese: じりょく Magnetism) is an ability introduced in Generation III.
Magnet Pull makes Steel Pokémon unable to Run Away. It is essentially the Steel-type counterpart of Arena Trap; however, Arena Trap works on Pokémon of any type only if that Pokémon is not a Flying type or have the ability Levitate.
Outside of battle
As its name suggests, the Magnet Pull ability is exclusive to Pokémon that rely on the Earth's magnetic field.