Nova Blast

"Even as he gloats over his triumph, I am summoning every last bit of moisture from the air for hundreds of kios around. I am merging it together, bending it to my will, preparing to unleash all my elemental power in one single explosion of force. And I do ... and I hope to the Great Beings I never will again."

- Toa Nuva Gali, Toa Nuva Blog

A Nova Blast is an explosive release of all of a Toa's Elemental Energy. Although the effects will vary, the blast radius of a Nova Blast released by an average Toa will encompass an area larger than the city of Metru Nui. Once a Toa has performed one, they cannot access their Elemental Powers until their Elemental Energy has recharged. A maskless Toa can perform a Nova Blast, although the blast would be significantly weakened.

Toa rarely use this ability, and only then as a last resort, as it is incredibly dangerous and is likely to kill anyone in the blast radius and destroy any nearby structures.

On the Isle of Angelus Nui, Toa Lewin once used an Air Nova Blast to kill a Niveau Trois, while Toa Tala later used a full release of his powers in a similar manner to attempt to kill Ucen.

Toa Nuva Gali used a Water Nova Blast in Karzahni, attempting to defeat Makuta Icarax.

Example Usage
Gali unleashed a Water Nova Blast, drawing in all the moisture from the air for hundreds of kio around and releasing it along with all of her Water powers at once, leveling all of Karzahni in the process.

Trivia

 * The Nova Blast was first acknowledged in the non-canon BIONICLE: The Game as a "Nuva Blast," but was later included by Greg Farshtey as a part of the BIONICLE canon.
 * Toa Hordika cannot perform Nova Blasts as they lack the focus and willpower necessary for it, although they can charge their Rhotuka to near-Nova Blast levels. However, they would risk losing control at that point.
 * The Glatorian imbued with Elemental Power by Mata Nui can also perform the equivalent of a Nova Blast, though it would kill the Glatorian in the process; this is because their bodies, being primarily organic, are not made to withstand that amount of energy.