Kopaka

Kopaka and the rest of his team were created on the island of Artakha. From there, they were transported to Daxiaand awakened. The Toa were immediately told by Helryx, the first Toa of Water, of their destiny to be the guardians of the Great Spirit Mata Nui. The Toa were then trained by Hydraxonin combat. In one exercise, the Toa were made to escape Spinax; Kopaka was the only one who succeeded by freezing Spinax. On another exercise, Hydraxon took the Toa's Kanohi and hid them across Daxia. Kopaka spent all day attempting to retrieve his Kanohi from a volcano. Lewa then realized they were to work together, and thusly did so. Tahuand Kopaka then allowed themselves to be captured by the Order at the fortress so they could get inside. There, they met with Helryx, who agreed to tell them of their mission and their future.

Upon completing their training, the Toa Mata were sent to Karda Nui to protect its Av-Matoran residents from living lightning bolt Rahi, known as the Avohkah. Tahu and Kopaka then led the other Toa to the Codrex. After they entered it, the hatch sealed them inside, and the two Toa were forced to explain their situation to the others. They could not leave the Codrex, because the energy storm that now filled Karda Nui would kill them. They also told them that they had to enter Toa Canisters, since the Codrex could not support life. They remained in their Toa Canisters for thousands of years. They were actually shot up into the sky and fell down into the ocean. They were originally intended to land on Mata Nui, then make their way to Metru Nui and reverse Mata Nui's sleep. However, something went wrong, and the canisters just floated in the ocean for a thousand years. It wasn't until Takua collected the Toa Stones of Mata Nui that the Toa were summoned to Mata Nui's shores.

Quest for the Masks

Kopaka drifted in the ocean for one thousand years, until Takua recovered the six Toa Stones and summoned the Toa to Mata Nui. Arriving on Ko-Wahi Beach, Kopaka regenerated his organics, rebuilt himself and ventured into the icy region of Ko-Wahi.

As he travelled through the frozen peaks and slopes, Kopaka soon became aware of a small being watching him, and used his power of Ice to expose the watcher and sent him sliding to the Toa. The small being introduced himself as Matoro, a Ko-Matoran. After concluding that Matoro was a friend rather than a foe, Kopaka allowed the Ko-Matoran to lead him to his village of Ko-Koro. Along the way, the pair of travellers were attacked by an infected Nui-Rama, and Kopaka had to use his power over Ice to rescue his Matoran companion when the Rahi tried to carry him away.

When they eventually reached Ko-Koro, Matoro introduced the Toa of Ice to Turaga Nuju, the village's elder, who told him of the islanders' plight, and of the Toa's mission to find the Great Kanohi. Nuju told him that one of the masks was located atop Mount Ihu, and Kopaka subsequently set out to claim it. Along the way, Kopaka soon met another Toa, a cheerful brown-armored individual named Pohatu when the Toa of Stoneaccidentally trapped him under a pile of rocks. Rejecting Pohatu's offer to help him out, Kopaka freed himself, but reluctantly agreed to join forces with Pohatu in their quest. Eventually reaching Mount Ihu, Kopaka found his first Great Mask: a Hau, which gave him the power to shield himself when he donned it. Afterward, the two Toa were attacked by a Kane-Ra bull with an infected Kanohi, who had been guarding the mask. Luring the infected Rahi into a chasm, Pohatu sealed the hole with several large boulders. After the Rahi was defeated, Kopaka and Pohatu came across the temple of Kini-Nui, where they discovered the other four Toa.

After the Toa Mata agreed to split up, Kopaka travelled alone to Ta-Wahi, where one of his Kanohi, a Pakari, was located on a small island of rock in the center of a lake of lava. Freezing a hot spring and using the resulting slab of ice as a makeshift raft, Kopaka paddled across with his Ice Sword and retrieved the mask; however, on the way back to shore, he accidentally sliced a chunk off the raft with his sword, which struck him in the head and briefly rendered him unconscious. After having a vision of the Toa Kaita, Kopaka awoke to discover that his ice raft had melted too much to make it across the remaining lava. Using the augmented strength of his newly acquired Pakari, Kopaka tried to jump across, but failed and would have plunged into the lava had Lewa not arrived just in time and used a strong updraft to carry Kopaka the rest of the way. During one incursion into Ko-Wahi, he found a beleaguered Takua and Matoro, under attack from a Muaka. Engaging the tiger Rahi, he initially used the Huna to land several unseen blows on its hide, drawing it to the edge of a cliff, then used a Mahiki to create two decoy replicas of himself. With the Rahi confused, Kopaka plunged his sword into the cliff, causing the hanging ledge on which the Muaka was perched to break away from the cliff, trapping the Rahi below.

At After he had collected all of his masks, he went to Kini-Nui and joined the other Toa. He received a gold mask, and descended into Mangaia. He joined with Lewa and Gali to become Toa KaitaWairuha, who then helped to defeat Manas Crabs that were gaurding Makuta's Lair. They then encountered Makuta and defeated him, at least for a time, and returned victorious to Mata Nui's surface.