Lightning

Electricity is a force involving use of electrical energy and magnetic fields. It was controlled to some small extent by the Toa Inika because their powers had lightning mixed in with them.

Tahnok Kal controls Electricity.

Nikia was a Toa of Lightning.

Examples

 * Creating electricity and lightning.
 * Shocking and/or paralazying an opponent with a burst of lightning.
 * Controlling electricity and lightning.
 * Creating a defensive shield of lightning.
 * Absorbing all the electricity and lightning in the area.
 * Unleashing an enormous blast of electricity known as a "Nova Blast".

Combinations
It has been confirmed by Greg Farshtey that beings other than Toa cannot combine powers of any sort to create a Protodermis cage. It has also been confirmed that as long as each of them wields a different Element, any six Toa can create a Protodermis cage.