Protosteel



Protosteel was the BIONICLE world's strongest known metal. Bladed weapons made of Protosteel could shred through virualy anything, even Makuta armor. It is believed Protosteel was first made on Artakha, and then given to the Order of Mata Nui to use.

Known Protosteel weapons

 * Ehlek's Tri-Talons
 * Toa Mahri Hahli's Protosteel Talons
 * Toa Mahri Nuparu's Razor-Edged Protosteel Shield
 * Pridak's teeth
 * Pohatu's Twin Propellers