Hydraxon
The jailer of the Pit was killed once, then resurrected as the Matoran Dekar by the Mask of Life.

Hydraxon was the jailer of the Pit, a fortress prison holding the most dangerous enemies 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. could lock away. He wasn't some random guard. He was a member of the Order itself, answerable directly to HelryxHelryx: the first Toa ever createdHelryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui.. The strange part is that he's technically not the original anymore. The first one died in the Great Cataclysm. The Hydraxon alive after the earthquake was the MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. 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., transformed by the Mask of Life into a complete duplicate of the jailer.
A Jailer With Standards#

Hydraxon ran the Pit like he actually believed in the job. He wasn't cruel for cruelty's sake, but he didn't coddle prisoners either. When HelryxHelryx: the first Toa ever createdHelryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui. sent him orders to recruit the Barraki, he walked into the lowest cells and made them an offer: fight the MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. alongside the Order, or die in your cell. PridakPridak: the most savage of the BarrakiPridak was the most savage of the six Barraki warlords and commanded an army of sharks. The League of Six Kingdoms ended with all six imprisoned in the Pit. and the others took the bargain. What's sharp about Hydraxon is that he'd follow HelryxHelryx: the first Toa ever createdHelryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui.'s orders without question, but he'd also work alongside Toa LesovikkLesovikkA Toa of Air and former commander whose team was destroyed, leaving him fractured and searching for purpose. as equals when recapturing escaped inmates. He understood the difference between jailer and soldier.
Training the Toa#
After the Toa Mata journeyed to the Pit, Hydraxon became their trainer, and he didn't hold back. In BIONICLEBIONICLE: Matoran AdventuresA 2002 GBA platformer where you play as one of six Matoran fighting Bohrok across Mata Nui's islands. Legends 10: 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., LewaLewaToa of Air, member of the Toa Mata and Toa Nuva, whose career was marked by repeated possession, body theft, and aerial campaigns from Le-Wahi to Karda Nui. finds himself underwater hunting for his Miru mask. Frustrated by schools of carnivorous fish, he gives up. Hydraxon laughs at him. GaliGali, Toa of WaterThe Toa Nuva of Water and conscience of the Toa Mata, whose attunement to her element anchored the team across every campaign from Mata Nui to Karda Nui. fares worse, defeated countless times before finally entering a wild frenzy in desperation. Even that fails. After she struggles to her feet for another attempt, 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. knocks her down. He was teaching them something they needed to learn: having power isn't the same as knowing how to use it when it matters.
The Duplicate Question#
The original Hydraxon died when the Great Cataclysm hit the Pit. The current one isn't a resurrection in the traditional sense. He's a duplicate created by the Mask of Life when it transformed 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., a MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. engineer the Order was working with. This makes him functionally identical to the original but technically a different being wearing the same purpose. The canon doesn't make a big deal out of that philosophical weirdness, and neither does Hydraxon. He just does the job.
Compiled from primary sources by Lore Fortress editorial. Reviewed by Joe Garratt, Editor-in-Chief.
Gallery

Images via BIONICLE Wiki (Biosector01)
Sources
- BookBIONICLE Legends 10: Swamp of Secrets, Training scenes with Toa Mahri
- SerialDestiny War, Hydraxon's role in Order negotiations
- ComicComic 9: Battle in the Deep!, Hydraxon's resurrection
- WikiHydraxon
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

The Order of Mata Nui
The 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.

Spinax
Spinax 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.

Lesovikk
A Toa of Air and former commander whose team was destroyed, leaving him fractured and searching for purpose.

Dekar
Dekar 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.

Swamp of Secrets
The 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.

Helryx: the first Toa ever created
Helryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui.
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