Aki Nuva

The Aki Nuva was the Kanohi Nuva of Valor. It had enhanced powers of Shielding, Strength, and Speed. The wearer of this mask would be able to activate the different powers individually. Aki Nuva could be formed by dipping normal Kanohi Aki in Energized Protodermis or by merging a Hau Nuva, Pakari Nuva, and a Kakama Nuva. The only beings able to use this mask were Toa Nuva.

Great
The Aki Nuva is supposed to be worn by the Toa Nuva Kaita Akamai Nuva, but he has never been formed. Therefore, the Aki Nuva has never existed.

Trivia

 * It is impossible to create a Noble Aki Nuva.
 * If it existed, the mask would look like a Hau Nuva, since the original Aki looked like a Hau.