Excadrill - 530 - It can help in tunnel construction. Its drill has evolved into steel strong enough to bore through iron plates. More than 300 feet below the surface, they build mazelike nests. Their activity can be destructive to subway tunnels.
Elekid - 239 - It generates electricity by whirling its arms. However, it can't store the energy it makes. Spinning its arms around to generate electricity makes the area between its horns shine light blue.