Toa Nuva Gali's Nuva Symbol appears
|Function||Store Toa Nuva's Elemental Powers|
|Status||Hidden (five active, one dormant)|
The Nuva Symbols were made by Artakha and sent to Mata Nui upon the Toa Mata's transformation into the Toa Nuva. As long as the symbols are in possession of friendly forces, the Toa Nuva retain their powers, but if enemies gain them, the Nuva are rendered powerless.
The Bohrok-Kal stole the symbols in an attempt to unlock the Nuva Cube and free the Bahrag. After the removal of the symbols from the Suva, the Toa Nuva lost their elemental powers.[C9][C10] Eventually, the Bohrok-Kal found the Nuva Cube, and almost unlocked the Bahrag's Toa Seal, but the Toa Nuva tapped into the powers within the symbols, and overloaded the Kal's powers, destroying them.[C12]
After the Bohrok-Kal incident, the symbols were moved to more secret and hard-to-reach places on the island, where they were constantly guarded by the Matoran. They were later taken to Metru Nui.
When Tahu was devolved back into his Toa Mata form by the Kanohi Ignika, the connection to his Nuva Symbol was broken. Tahu's elemental powers no longer rely on the object and his symbol has become dormant.
- If a Nuva Symbol were to be broken, the corresponding Toa Nuva would lose their elemental power.
- An advertisement at the end of Powerless! contained information on the six Nuva symbols. The page claimed that Tahu's symbol was forged in the Mangai Volcano; Gali's drawn from Gali's Bay; Kopaka's as cold as Mount Ihu; Lewa's born of the living jungle; Pohatu's carved from the hardest stone; and Onua's a treasure from deep within Mata Nui. This is non-canon.
- In the Game Boy Advance version of BIONICLE: The Game, Takanuva displays his own Nuva Symbol when he uses his Elemental Power of Light. This is non-canon.
- The six Uniter sets released in 2016, which share the names of the six Toa Nuva, displayed their respective Nuva Symbols on their chest armor.
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