Avohkii

The Kanohi Avohkii is the golden mask that appeared in the BIONICLE series. This mask was once created by the being called Artahka in his homeland and was since wore by the Av-Matoran named Takua, who later transformed into Takanuva, the Toa of Light.

History
The Kanohi Avohkii was created by Artahka first in the form of the stone as he used it as the safeguard against the possibility of the Brotherhood of Makuta's corruption.

Around 2, 500 years ago, the Brotherhood of Makuta invaded Artahka to steal the Avohkii because they feared of its power. Although the inhabitants of the island tried to defend the island from their attack, the Brotherhood successfully stole the stone with the help of Kojol, a Makuta who was assigned to supervise this island. Later back in Destral, the Brotherhood assigned the Dark Hunter named Seeker to guard the Avohkii from intruders.