Toa Power

Toa Power was the energy within a Toa that could not be restored, and if it was used up it would turn the Toa into a Turaga. Toa Energy was needed to be found in certain Matoran to become Toa. The energy could be transferred into Toa Stones. The energy can then be used to "unlock" a Matoran's power and turn them into Toa

Examples
When Toa Lihkan turned the Matorans Vakama, Nokama, Nuju, Whenua, Onewa and Matau into Toa Metrus, he used his Toa Power. After the matorans haved being turned into toas, Lihkan don´t have any Toa Power left, so he turned into an turaga: Turaga Lihkan.

Uses

 * Turn a Matoran into a Toa
 * Awaken someone from a coma