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Pit Mutagen

The Drowned Curse of the Black Water

The biological lock built into the Pit, a mutagenic substance that rewrote every being immersed in it into a water-breathing form unable to survive on land.

By Joe Garratt

The PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. was a mutagenic substance suspended in the waters of the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains., the deep-sea prison built by the Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. beneath the southern reaches of the Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control.. Long-term exposure to the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. rewrote the biology of any being immersed in it. The result was a permanent transformation into a water-breathing form whose lungs and physiology were no longer able to function in air. The substance was the final guarantee in the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains.'s containment design, intended to ensure that any prisoner who escaped the prison's physical cells would still be unable to walk away. After the Great CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent. cracked the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. open, the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. spread across the surrounding ocean and transformed nearly everyone who entered the area for any extended period.

Origin and function#

The PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. was engineered for a single purpose. The Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe., building the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. as a prison for beings too dangerous to leave free and too valuable to execute, needed a containment measure that worked even when every other layer of the prison failed. Physical cells could be broken. Walls could be breached. Guards could be killed or subverted. The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. addressed the failure case directly. If a prisoner broke through every other barrier, the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. in the water surrounding their cell would already have done its work on them. The escapee would emerge unable to breathe air. The surface, and any return to ordinary life, would remain closed to them by biology alone.

The substance was suspended in the seawater throughout the trench complex and its immediate surroundings. Long exposure was required. Short immersion was not sufficient to trigger the full transformation. The duration needed varied by species and individual constitution, but the effect was reliable enough that the OrderThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. treated it as a guarantee rather than as a probability. Once a prisoner had been in the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.-saturated water for the requisite time, the transformation was irreversible by ordinary means. The being's lungs were rewritten. Gills, fins, or analogous water-breathing organs were imposed by the substance's restructuring of the host biology. Whatever shape the prisoner had walked into the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. with was no longer the shape they would walk out in, because they would not walk out at all.

The breakout and the BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell in a single Brotherhood ambush, and spent millennia mutated in the Pit.#

The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.'s most consequential mass exposure occurred during the Great CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent., the planet-scale upheaval that broke much of the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains.'s structural integrity. The cell block that had held the six BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell in a single Brotherhood ambush, and spent millennia mutated in the Pit. warlords of the League of Six KingdomsLeague of Six KingdomsThe League of Six Kingdoms was an alliance composed of various species, with ties to Xia and many other islands. Connected to both the Order of Mata Nui and the Brotherhood of Makuta, the League included Pridak among its ranks, and its members collectively held several powers of unknown scope. Its stated objective was the overthrow of Mata Nui. cracked open. PridakPridakPridak was the most feared of the six Barraki, commander of a shark army and the dominant voice of the League of Six Kingdoms before its imprisonment in the Pit., KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form., CaraparCaraparOne of six Barraki warlords imprisoned for 80,000 years, Carapar sought the Mask of Life and became expendable muscle for a final, fatal mission., MantaxMantaxMutated Barraki warlord of the Pit who uncovered Takadox's Brotherhood collaboration through a hidden Tablet of Transit., TakadoxTakadoxA Barraki warlord whose hypnotic vision and cunning made him dangerous even in defeat., and EhlekEhlekA Barraki warlord with electrical powers who led aquatic forces against the Brotherhood of Makuta. all escaped their cells into the surrounding ocean. They had already been in the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.-saturated water of the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. for the eighty thousand years of their imprisonment. The transformation had run to completion.

Each BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell in a single Brotherhood ambush, and spent millennia mutated in the Pit. emerged in a fully aquatic body specific to his species. PridakPridakPridak was the most feared of the six Barraki, commander of a shark army and the dominant voice of the League of Six Kingdoms before its imprisonment in the Pit. became a shark-form predator. MantaxMantaxMutated Barraki warlord of the Pit who uncovered Takadox's Brotherhood collaboration through a hidden Tablet of Transit. took on a manta-ray morphology. EhlekEhlekA Barraki warlord with electrical powers who led aquatic forces against the Brotherhood of Makuta. adopted an electric eel body. KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. acquired tentacled cephalopod features. CaraparCaraparOne of six Barraki warlords imprisoned for 80,000 years, Carapar sought the Mask of Life and became expendable muscle for a final, fatal mission. became armored and crab-like. TakadoxTakadoxA Barraki warlord whose hypnotic vision and cunning made him dangerous even in defeat. was reshaped into a mantis form. None of them could return to land. None of them could resume the bodies they had worn at the height of the LeagueLeague of Six KingdomsThe League of Six Kingdoms was an alliance composed of various species, with ties to Xia and many other islands. Connected to both the Order of Mata Nui and the Brotherhood of Makuta, the League included Pridak among its ranks, and its members collectively held several powers of unknown scope. Its stated objective was the overthrow of Mata Nui. almost a hundred thousand years earlier. The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. had not killed them. It had taken away every option that did not involve remaining beneath the waves.

The BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell in a single Brotherhood ambush, and spent millennia mutated in the Pit. recognised the cost. By the time the Toa MahriToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age. arrived to challenge them, the BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell in a single Brotherhood ambush, and spent millennia mutated in the Pit.'s plan for the Kanohi IgnikaThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero. was specifically calibrated to address the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. problem. They intended to wait until the mask was destroyed and then use the leaked life energy to restore themselves to their pre-mutation forms.

The PirakaPirakaSix rogue Skakdi mercenaries who broke from the Dark Hunters to hunt the Mask of Life on Voya Nui. and KarzahniKarzahniBionicle reused one cursed name three times, and every instance earns it, this is the article that finally untangles all three.#

The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. caught the PirakaPirakaSix rogue Skakdi mercenaries who broke from the Dark Hunters to hunt the Mask of Life on Voya Nui. next. Following their defeat on Voya NuiVoya NuiAn island born from catastrophe and hiding the universe's most powerful artifact, Voya Nui was everything Bionicle 2006 promised: danger, mystery, and a race against time. and the loss of the Mask of LifeThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero. into the sea, HakannHakannThe Skakdi bully known for pure aggression, from Dark Hunter mercenary to Piraka thief driven by violence and power., VezokVezokThe Beast was a Piraka thief split in two by the Spear of Fusion, then imprisoned by the Order of Mata Nui., ReidakReidakA sadistic Skakdi thug who traded the Dark Hunters for the Piraka and paid the price., AvakAvakA Skakdi thief whose perfect prisons made him invaluable to the Piraka's Mask of Life heist., ThokThok (the Drifter)The Piraka's cowardly thief learned that ice guns and dirty tactics can't save you from Toa with elemental fury., and ZaktanZaktanMutated Skakdi leader of the Piraka, formerly a Dark Hunter whose body was dissolved into a colony of Protodites by the Shadowed One and reformed with its consciousness intact. pursued the artifact downward through the stone cord that connected Voya NuiVoya NuiAn island born from catastrophe and hiding the universe's most powerful artifact, Voya Nui was everything Bionicle 2006 promised: danger, mystery, and a race against time. to Mahri NuiMahri NuiA matoran settlement that sank, survived, and was ultimately crushed beneath Voya Nui, leaving behind one of Bionicle's most poignant lost civilizations.. The descent took them through the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.-saturated water of the area surrounding the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains.. Their exposure was extended, and the substance acted on them with characteristic permanence. The six PirakaPirakaSix rogue Skakdi mercenaries who broke from the Dark Hunters to hunt the Mask of Life on Voya Nui. lost most of their bodies entirely. What remained was the spine and the head of each, transformed into serpent-like water-breathers. They became sea snakes in all but name, retaining their intelligence and their factional rivalries but no longer possessing the SkakdiSkakdiA brutish warrior species from Zakaz whose pair-dependent elemental powers and moral void made them one of Bionicle's few irredeemable factions. anatomy they had begun with.

KarzahniKarzahniBionicle reused one cursed name three times, and every instance earns it, this is the article that finally untangles all three., the Great BeingThe Great BeingsScholar-inventors of Spherus Magna whose creations shaped the Matoran Universe and whose absence defined the conflicts that followed.-built entity who had followed the PirakaPirakaSix rogue Skakdi mercenaries who broke from the Dark Hunters to hunt the Mask of Life on Voya Nui. down the cord, suffered the same fate. The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. reshaped him into his own underwater form. His OlisiOlisiThe Olisi is a Mask of Alternate Futures that grants its wearer the ability to see and show alternate timelines and possible futures. The mask was formerly worn by Karzahni. mask, the Mask of Alternate Futures, was fused to his face by the same process, although he retained access to its power. He wandered the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. area for the duration of the Mahri NuiMahri NuiA matoran settlement that sank, survived, and was ultimately crushed beneath Voya Nui, leaving behind one of Bionicle's most poignant lost civilizations. crisis as a mutated water-breathing version of himself.

The Toa MahriToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age. and SpinaxSpinaxSpinax is an Energy Hound who serves the Order of Mata Nui on Spherus Magna. Grey and silver in coloration, Spinax relies on its teeth and claws as tools in carrying out its duties as a servant of the Order.#

The Toa InikaToa InikaSix former Matoran who entered Karzahni broken and emerged as the next Toa team, transformed on the shore of Voya Nui by a lightning strike from the red star., arriving in the area in pursuit of the IgnikaThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero., were forced into the same waters as the PirakaPirakaSix rogue Skakdi mercenaries who broke from the Dark Hunters to hunt the Mask of Life on Voya Nui. and met the same biological constraint. Their exposure produced a transformation aligned with their existing forms rather than against them. JallerJallerJaller served as Captain of the Ta-Koro Guard, led the Toa Inika to Voya Nui, and commanded the Toa Mahri through the recovery of the Mask of Life., HahliHahliA Ga-Matoran scholar who rose to become Chronicler of Mata Nui, then Toa Inika, then Toa Mahri of Water during the final crises of the Matoran Universe., KonguKonguKongu commanded Le-Koro's Gukko Force before a strike from the Kanohi Ignika transformed him into a Toa of Air who later served among the Toa Mahri., HewkiiHewkiiHewkii rose from Po-Metru carver to Mata Nui's foremost kolhii player, then served as Toa Inika and Toa Mahri through the late wars of the universe., NuparuNuparuAn Onu-Matoran engineer from Metru Nui who built the Boxor and rose to become a Toa of Earth despite no warrior destiny., and MatoroMatoroA quiet Ko-Matoran translator who became a Toa Inika and then a Toa Mahri, Matoro gave his life with the Mask of Life to restore Mata Nui. became the Toa MahriToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age., water-breathing forms equipped to operate in the depths around Mahri NuiMahri NuiA matoran settlement that sank, survived, and was ultimately crushed beneath Voya Nui, leaving behind one of Bionicle's most poignant lost civilizations. for the duration of their mission. The MahriToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age. carried the transformation through the entire Mahri NuiMahri NuiA matoran settlement that sank, survived, and was ultimately crushed beneath Voya Nui, leaving behind one of Bionicle's most poignant lost civilizations. crisis and remained in aquatic form until their final emergence on the surface.

Other beings caught up in the breakout suffered the same change. SpinaxSpinaxSpinax is an Energy Hound who serves the Order of Mata Nui on Spherus Magna. Grey and silver in coloration, Spinax relies on its teeth and claws as tools in carrying out its duties as a servant of the Order., the Energy HoundEnergy HoundRare predatory Rahi able to track living beings by their unique energy signatures, deployed by the Order of Mata Nui as tracking assets in the Pit. belonging to the MaxilosMaxilos RobotsBuilt by Artakha and deployed by the Order of Mata Nui to guard the Pit, a single Maxilos unit was later hijacked by Teridax during the Mahri Nui arc. robot that had patrolled the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains., was mutated by the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. into an amphibious form. HydraxonHydraxonThe jailer of the Pit was killed once, then resurrected as the Matoran Dekar by the Mask of Life. himself died during the breakout, and his replacement, a Po-MatoranPo-MatoranThe Stone-element Matoran of Po-Metru and Po-Koro, carvers and quarry workers, the most athletic of the Matoran types and the population behind the Kohlii and Akilini circuits. named DekarDekarDekar is a former Po-Matoran who serves as an Aqua Hunter on Spherus Magna. Colored yellow, black, and silver, he once wore a powerless Kiril and retains an inactive Stone element; his tools are Electro-Blades and an Air Launcher. reshaped by the IgnikaThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero. into a copy of the original jailer, continued his work in waters that had now permanently changed character. The breakout had not only freed the prisoners. It had also extended the prison.

The Swamp of SecretsSwamp of SecretsThe Swamp of Secrets was the mutagen-saturated wetland that filled the floor of Karda Nui after the Great Cataclysm, serving as a Brotherhood stronghold until the Energy Storms.#

A separate consequence of the CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent. opened a path for the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. to reach a region entirely outside its intended jurisdiction. When Voya NuiVoya NuiAn island born from catastrophe and hiding the universe's most powerful artifact, Voya Nui was everything Bionicle 2006 promised: danger, mystery, and a race against time. broke off from the Southern ContinentThe Southern ContinentThe Southern Continent was a vast landmass beneath the Matoran Universe, scarred by Voya Nui's separation and held under Makuta Mutran's nominal dominion., the displacement produced two holes: one in the roof of Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui., the universe core at the centre of the Mata NuiMata NuiBuilt by the Great Beings to restore Spherus Magna, Mata Nui sustained an entire civilisation inside his body, was deposed by Teridax, and reclaimed his purpose as a mortal on Bara Magna. robot, and one in the floor of the Southern ContinentThe Southern ContinentThe Southern Continent was a vast landmass beneath the Matoran Universe, scarred by Voya Nui's separation and held under Makuta Mutran's nominal dominion.'s outer dome. The holes coincided. Large quantities of sea water containing Pit MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. poured through both at once, creating a waterfall that fell down into the previously dry core.

Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui. did not flood completely. Its volume was too great, and the inflow tapered before total submersion. What the inflow did instead, over the course of roughly a thousand years, was convert the floor of Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui. into a vast mutagenic swamp. The local Av-MatoranAv-MatoranThe Light-element Matoran, prototypes of their species, who colonised Karda Nui from the Southern Continent and built the Stalactite Villages above the Swamp of Secrets. responded by building CodrexThe CodrexA spherical vault built by the Great Beings beneath Karda Nui to house the Toa Mata in stasis and control the final phase of Mata Nui's reawakening.-adjacent structures and adapting their habitation patterns to the new wetland conditions, but the underlying water remained chemically active. The Swamp of SecretsSwamp of SecretsThe Swamp of Secrets was the mutagen-saturated wetland that filled the floor of Karda Nui after the Great Cataclysm, serving as a Brotherhood stronghold until the Energy Storms. mutated anything that remained in it for a substantial duration.

When the Mistika MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. KrikaKrikaThe cautious Mistika leader who survived by never taking unnecessary risks, until Teridax's Plan forced his hand., GorastGorastA Makuta defined by rage and ruthlessness, Gorast conquered the Visorak and became Teridax's most devoted enforcer., and BitilBitilA Makuta obsessed with enslaving Toa, Bitil weaponized his Mohtrek's copying power in the final invasion of Karda Nui. operated in the swamp during the Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui. conflict, the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. acted on them as it did on everything else. The three MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. lost access to approximately half of the forty-two KraataKraataSlug-like creatures birthed from Makuta's essence, designed as both weapons and the cores of Rahkshi armor. powers, including their shape-shifting ability. The MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. had reached far enough to weaken the senior leadership of the Brotherhood of MakutaThe Brotherhood of MakutaAn organization of Makuta created by Mata Nui to police his universe and build Rahi, later seized by Teridax and turned into the instrument of the Plan that overthrew the Great Spirit. in the field, an outcome the Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. had not designed it for but could hardly have objected to.

The reversal#

The PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.'s effects were considered permanent for the entire operational history of the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. and for years after the breakout. No tool available to ordinary ToaThe Toa: Heroes of the Matoran UniverseThe Toa were biomechanical guardians sworn to protect the Matoran, bound by a strict code and defined by sacrifice across every age of the universe. science could undo the transformations the substance produced. The reversal arrived only at the very end of the Reign of ShadowsReign of ShadowsThe year Teridax ruled the Matoran Universe from inside Mata Nui's body, and the scattered resistance plots that ran against him until the Great Spirit returned from Bara Magna.. When Mata NuiMata NuiBuilt by the Great Beings to restore Spherus Magna, Mata Nui sustained an entire civilisation inside his body, was deposed by Teridax, and reclaimed his purpose as a mortal on Bara Magna., restored to the Prototype RobotThe Prototype RobotThe Great Beings' earlier and unstable attempt at the design that became the Great Spirit Robot, scattered across the Bara Magna desert and reassembled by the villages to carry Mata Nui into the final battle with Teridax. and wielding the Kanohi IgnikaThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero., defeated TeridaxTeridaxTeridax orchestrated a thousand-year scheme that ended with him occupying the Great Spirit Robot itself before his death on Bara Magna. on Bara MagnaBara MagnaA desert world of tribal warfare and scarce resources, one of three landmasses that formed Spherus Magna., he used the combined power of the prototype body and the Mask of LifeThe Mask of Life (Kanohi Ignika), explainedA failsafe forged by the Great Beings to recharge a god. It curses everyone who touches it, and by the end of Bionicle it had learned how to be a hero. to un-mutate the beings the Pit MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it. had transformed. KarzahniKarzahniBionicle reused one cursed name three times, and every instance earns it, this is the article that finally untangles all three. was reverted, along with the OlisiOlisiThe Olisi is a Mask of Alternate Futures that grants its wearer the ability to see and show alternate timelines and possible futures. The mask was formerly worn by Karzahni. that had been fused to his face. The same effect rolled back across the other living victims of the MutagenMutagenPit Mutagen was a power-source energy that leaked into the waters of The Pit during the Great Cataclysm and mutated almost every being exposed to it.. The biological lock that the Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. had built into the PitThe PitThe Order of Mata Nui's maximum-security underwater prison where the Barraki warlords were held until catastrophe broke their chains. was undone by the very mask whose curse had inspired so much of the OrderThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe.'s caution in the first place.

Frequently asked questions

What is the Pit Mutagen in BIONICLE?
The Pit Mutagen was a mutagenic substance suspended in the waters of the Pit, the deep-sea prison built by the Order of Mata Nui. Long-term exposure rewrote the biology of any being immersed in it, permanently transforming them into a water-breathing form whose lungs could no longer function in air.
Why was the Pit Mutagen created?
The Order of Mata Nui engineered it as a containment measure that worked even when every other layer of the prison failed. If a prisoner broke through every other barrier, the Mutagen in the surrounding water would already have done its work, leaving the escapee unable to breathe air and unable to return to the surface.
How did the Pit Mutagen transform the Barraki?
The six Barraki had been in the Mutagen-saturated water for the eighty thousand years of their imprisonment, so the transformation ran to completion when the Great Cataclysm cracked their cell open. Each emerged in a fully aquatic body specific to his species, such as Pridak becoming a shark-form predator and Mantax taking on a manta-ray morphology, and none of them could return to land.
What did the Pit Mutagen do to the Piraka and Karzahni?
When the Piraka pursued the Mask of Life down through the Mutagen-saturated water, the six lost most of their bodies entirely, leaving only the spine and head of each transformed into serpent-like water-breathers. Karzahni suffered the same fate and was reshaped into an underwater form, with his Olisi mask fused to his face though he retained access to its power.
How was the Pit Mutagen's effect reversed?
The reversal arrived only at the very end of the Reign of Shadows. When Mata Nui, restored to the Prototype Robot and wielding the Kanohi Ignika, defeated Teridax on Bara Magna, he used the combined power of the prototype body and the Mask of Life to un-mutate the beings the Mutagen had transformed.

Sources

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