Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki

Yeah, no. Not my job anymore, kid. I'm out.

–Zetium avoiding a fight with Tech and Napoleon, Absolute Knowledge

General Information
Species Unknown
Home World Unknown
Alias High Commander Zetium
Part In Team High Commander
Age 50+ (Exact age unknown)
Status Active
Abilities and Equipment
Abilities Mana Manipulation
Dark Mana Manipulation
Equipment Obsidian Death Armor
Associated Tarot XIV - Temperance
First Appearance Absolute Knowledge

Zetium is a recurring character from Tech 10: Rebooted and Tech 10: Star Spirit. She made a brief appearance in Project Deca and later appears as a minor character in Tech Cross.



Zetium grew up in what was basically a warzone on her home planet. Times were tough, resources were scarce, and those around her were dying left and right. Zetium wasn't as physically impressive as most members of her species, but she had been gifted with an unusually advanced intelligence, quickly learning how to survive and thrive in this harsh environment. While she's thus far refrained from mentioning any specific, it is implied that she underwent a uniquely harrowing experience even by the standards of a warzone, which is what allowed her to gain control over Dark Mana.

At some point when she was a young adult, she met a visiting squadron of the infamous Obsidian Death that was visiting for the purpose of closing a weapons deal. She used the organization as an "out", joining in order to get off-planet. Her skill with Mana allowed her to quickly rise through the ranks, and her ability to use Dark Mana thanks to her upbringing in a war zone made her an invaluable specialist to the organization. She eventually became High Commander of the Obsidian Death's Mana Division and primarily put the division to work researching Dark Mana.

Tech 10: Rebooted

Zetium first appeared in Absolute Knowledge, leading one of the Obsidian Death's strike teams to temporarily capture the Archives of Oberon. She obtained the information necessary to create a massive golem composed of earth, stone, and Dark Mana from Veritum's surface, eventually creating one to battle Tech and Napoleon Eldridge, who had taken out the rest of her troops at that point. They managed to defeat the golem, after which Zetium left the scene.

Her next appearance was in Old Foes, New Beginnings, where she was commanding a team from the Obsidian Death's Mana Division on an operation to investigate Moranna Ceres' hometown, which had long been infected with Dark Mana. She met Tech and Moranna, who had been investigating the town themselves, and talked with them briefly before walking off and advising them to leave.

Between Series

Not much is known of Zetium's activity between series. It is known that she was one of the few Obsidian Death members to survive the organization's downfall, primarily thanks to her decision to drop out of the ultimately doomed Earth Mission that occurred in If Earth Could Speak. At some point, she began working for Divara, who hired her to assist with bringing back the deceased Anti-Life Entity.

Tech 10: Star Spirit

Zetium's first reappearance was in Generations of Men, where she retrieved Prelude from hibernation to bring him to Divara, who wanted his assistance in bringing back the Entity. She and Prelude were later sent to Earth to fight and ultimately lose to Theodore Logical, who Divara wanted more combat information on.

She next appeared in Interlude, where she was performing maintenance on an odd machine that Divara had created. She got into a conversation with Divara and Prelude that eventually led to Divara revealing her motivations and ultimate reasoning for wanting to bring back the Entity.

Project Deca

Zetium appeared briefly alongside Prelude and Divara at the Archives of Oberon, where she remained for the rest of the episode.

Tech Cross

Zetium was recruited into the criminal syndicate 'Triumvirate' alongside most surviving members of the now-defunct Obsidian Death.

In Part 1 of Re X Mix/Part 1, she was sent to recruit notable criminal Malincious Crow for the Triumvirate, but he declined, explaining that he already had a contract with someone else. Not interested enough in him to insist, she simply shrugged and left.

In Re X Mix/Part 2, she was involved in the Triumvirate's plan to distract the local Omnitrix users of Salt Lake City long enough to get their battleship up and running. After a brief fight with Moranna Ceres and Teresa Challice, she gave up and expressed frustration over her inability to find work outside of criminal organizations. CROSS suggested she visit Dr. Krauze, a scientist that worked with Alien Immigration Services to help aliens settle into a life and career on Earth. She acknowledged it as being a good idea under the circumstances and left.

Tech X+

Zetium appears as the main protagonist of Dark X Mana, which showcases her new life after seeking assistance from Dr. Krauze. She used her mana expertise to open up a specialty shop for magic and mana-related items. An assassin from the Triumvirate is sent to make an example of her, but having predicted this situation well in advance, her magic allows here to easily overpower the assassin and wipe his memory of the incident, setting up a spell that made her shop invisible to Triumvirate members and sending the assassin on his way with the belief that he had successfully killed her.


Zetium is a tall, somewhat stocky humanoid alien with pink skin. She wears the Mana Division High Commander's Obsidian Death armor, consisting of a black uniform with magenta highlights and markings that covers most of her body. She wears the Obsidian Death badge on her waist.


Zetium's species naturally has enhanced strength, durability, and stamina, though to exactly what extent is unknown.

Zetium herself has the ability to manipulate Mana, and, more notably, Dark Mana, an ability she gained from discovering and taking advantage of the copious amounts of Dark Mana present all around her on her home planet.


Obsidian Death Armor

Zetium wears armor that indicates her rank as High Commander of the Obsidian Death's Mana Division, even long after the organization was disbanded; this is mostly on account of relying on the Obsidian Death's reputation to keep people away from her in public.


SapienSwitches are small, Omnitrix-like devices created by Dr. Krauze that allow aliens to assume human form in order to make better use of Earth's human-focused infrastructure.


Zetium is fairly laid-back and somewhat sardonic. Even when she claims to be angry, she keeps a cool head and remains completely in control of herself. She tends to pick and choose her battles, and while this may seem cowardly to some, she makes these decisions from a primarily logical standpoint, seeing taking part in battles she can't win as a waste of time.

As more of her personality is showcased in post-Rebooted series, it becomes fairly obvious that she just straight-up doesn't like fighting in general, and holds a bit of resentment for the criminal organizations she works for, looking down on those who join them out of greed rather than necessity.

Zetium seems to be relatively indifferent to any person's given allegiance, interacting with anyone who doesn't actively get in her way fairly peacefully. She doesn't seem afraid of showing contempt for anyone who annoys her but will generally not be aggressive or hostile beyond that.


  • Zetium's associated Tarot is XIV - Temperance, which can represent synthesis, prudence, harmony, and the merging of opposites.
  • Zetium is the only non-Animam Creari known to be capable of freely manipulating Dark Mana.

Tech 10: Rebooted
SpecTrix Aliens
AemuTrix Aliens

Normal Aliens: Snekfire - Briiz - Conveshift - SPAse

Alternate Timeline Aliens
Main Characters
Minor Characters
Tech 10: Rebooted: Behind the Scenes

Tech 10: Star Spirit
StarTrix Aliens
InverTrix Aliens
Swarm 2 Builds

Jet Boots - Spiked Gauntlets - Arm Cannons - Bladed Armbands - Weaponized Lantern

SpecTrix Aliens
Main Characters
Minor Characters
Zodiac Organization

Orion (Leader) - Ophiuchus (Second-In-Command)

Aries - Taurus - Gemini - Cancer - Leo - Virgo - Libra - Scorpio - Sagittarius - Capricorn - Aquarius - Pisces


Brave New World - TBA - TBA - TBA - TBA - King's Crossing - Fade to Black - TBA - Anthem For Doomed Youth: Part 1 - Anthem For Doomed Youth: Part 2 - A Hero: Part 1 - A Hero: Part 2

Legacy, Part 1: Under Pressure - Legacy, Part 2: The Show Must Go On - Legacy, Part 3: Bohemian Rhapsody