Volitak

"[Nuparu] could fade into the background and make virtually no noise as he swam."

- Narration, BIONICLE Legends 7: Prisoners of the Pit

The Kanohi Volitak was the Mask of Stealth. The mask could mute common noises and render the user semi-invisible. Despite this, they would still cast a shadow. The only masks that will see through a Volitak's usage are Arthron, Elda and Rode.

Example Usage
In BIONICLE Legends 7: Prisoners of the Pit, Nuparu used his Volitak to sneak out of a cave he was forced into by the Barraki.

Great

 * Toa Mangai Nidhiki - Formerly; lost when mutated by Roodaka.
 * Toa Mahri Nuparu - Wears a modified version.

Powerless

 * Mazeka
 * Matoran Nidhiki - Formerly; became Great when he transformed into a Toa.