Metalbending is a specialized form of bending in the Avatar: The Last Airbender universe, allowing skilled Earthbenders to manipulate metal. This technique was first discovered by Toph Beifong, a blind Earthbender who developed the ability to sense the small amounts of earth within metal, enabling her to control it. Metalbending requires a high level of precision and focus, as it involves bending the tiny particles of earth found in metal. This bending art has evolved, leading to the creation of Metalbending Police in The Legend of Korra, who use this skill to maintain order and enforce the law in urban areas.