Toa Stone (Rukanor-Zar)

Toa Stones (also known as Inika Stones) are small rocks used to power Matoran-to-Toa upgrade machines.

History
The Toa Stones of Rukanor-Zar are a modified version of the ones found in the Matoran Universe. When the MU's inhabitants arrived on Rukanor-Zar, changes were made to the process by which Toa Stones are created. Instead of transforming a Matoran directly into a Toa (a procedure which had been known to backfire), they powered a separate device which performed the upgrade instead.

Function
This kind of Toa Stone is created when a Toa charges a piece of metallic ore with some of their power. It is then given to a Matoran, along with instructions to seek out the nearest upgrade machine (often located at a Toa Kini). Once at the temple, the ore chunk is placed in a niche in the walls of the temple, activating the hidden device. The rebuilding process takes around 12 minutes to complete. When finished, the resulting Toa will be intact and fully powered, though they may be somewhat confused by their new form.

Trivia
The Matoran-to-Toa "upgrade" was partially inspired by Hero Factory.

The Toa Power contained within the stone is transferred into the Matoran during the upgrade.