Mask of Undeath

The Mask of Undeath is a Kanohi that that siphons off a tiny part of its user's life-force from their body, which it then uses to reanimate their body after they die. When killed, the dead body is then animated by the life-force and continues its previous objective from life. The mask gives the user no other power and will slow down their thinking and movement. While undead, the user will lose all illumination in their eyes.

Powerless

 * An unnamed "fixed" Matoran in Karzahni

Trivia

 * The mask was originally part of a BZPower fan project, but BIONICLE writer Greg Farshtey approved it as official.
 * This mask power was inspired by its black eyes and 'deathly appearance'.
 * Toa considered this to be an immoral mask, as the mask basically turned its wearer into a zombie. Most beings saw this Kanohi as being bad luck and taboo.