Shelek

"Chirox struck first, using his mask power to make it impossible for Takanuva to to hear their approach or call for help."

- Narrator, The Final Battle

The Kanohi Shelek is the Mask of Silence. It allows its user to simultaneously disable a target's ability to speak and hear for as long as the user concentrates.

Example Usage
Chirox used his Kanohi Shelek in The Final Battle to temporarily deafen and mute Takanuva so that he and Bitil could ambush him.

Great

 * Makuta Chirox - Formerly; now deceased
 * Makuta Mutran - Formerly; now deceased
 * Makuta Yteryl - Primary mask.

Noble

 * Turaga Sāh Ferohn - Primary mask.

Powerless

 * Kirop
 * Vican

Trivia

 * Toa would not normally wear this mask, due to its association with Makuta.