Mask of Kanohi

Mask of Kanohi was an extremely powerful Kanohi. It contained all the mask powers that a Toa, anywhere, has used. The mask senses Kanohi powers used across the world and when a new mask power is used by a Toa, it collects the power into the mask.

Toa of the Toa was careful with the mask, since it had so much power. That's whyhe rarely used it.

Great

 * Toa of the Toa (Formerly)

Trivia

 * If the mask would've been in excistence at the time when Matoro used the Mask of Life, Kanohi Ignika, it would've collected the powers of that mask and thus, making it very dangerous for the whole universe.