Decimus Prime (BotO)

## Appearance

Decimus is a large green robotic humanoid with black stripes and white trimmings all over his body, gray upper arms and legs, a slight chin on his face, a green visor covering his eyes, two rods sticking out of his back, exhaust pipes sticking out of his arms, and tires on his shoulders and legs. He bears a large Omnitrix logo on his chest with the real one in the middle.

He can assume the form of a green sports car with a white bumper, grille, hood bonnet and side skirts, a small green spoiler, and the number 10 emblazoned on both doors.

## Powers and Abilities

Like all Cybertronians, Decimus is able to transform into an alternate mode, with his in particular being a land vehicle. This form allows increased mobility as well as stealth, letting him move quicker or disguise himself as unassuming machinery. With the necessary equipment, Decimus can alter his form and appearance by scanning a different vehicle. He can also use his chosen alternate mode to carry a limited number of passengers.

Decimus has some type of energy melee weapon.

Because he does not need to breathe, Decimus can survive underwater and in the vacuum of space.

Decimus has superhuman strength in robot mode, superhuman speed in vehicle mode and enhanced agility and reflexes in both modes.

Decimus's body has natural armor made from a special alloy that allows him to withstand most conventional attacks and certain alien technologies.

Decimus has a limited self-repair system to fix minor damage.

## Weaknesses

Decimus is vulnerable to unnatural diseases and "uberpredators" such as Unicron and Cosmic Rust.

Decimus is unable to safely become a triple or six changer, since adopting multiple alternate modes would strain his body to the point of affecting his mental state, as demonstrated with Blitzwing. He also cannot assume a form larger than himself.

Decimus is vulnerable to exotic forms of energy such as magic. Similarly, he can be affected by spatiotemporal manipulations like those of a Chronosapien.

Decimus is vulnerable to being possessed by an Ectonurite. Similarly, he is vulnerable to being controlled by more parasitic beings.

Decimus is vulnerable to having his energies drained and absorbed by beings such as Osmosians and Conductoids.

Similar to Clockwork, Decimus is vulnerable to having his body dismantled by a Planchaküle. Similar to Upgrade, Decimus is sensitive to electromagnetic projections.

He can be disabled or restrained by Cybertronian stasis cuffs and other means, like getting trapped by beings such as Necrofriggians and Petrosapiens.

As his body is metal-based, he is vulnerable to being magnetized by a Biot-savartian. He is also vulnerable to other forms of telekinesis.

There is a limit to Decimus' durability, as his armor is vulnerable to extreme temperatures and can be either damaged or breached with sufficient pressure or special materials and weapons. Similarly, his internal workings and other functions are vulnerable to being hacked, damaged or overloaded.

There is a limit to Decimus's strength, as even custom-forged and augmented Cybertronians have trouble against sufficiently powerful opponents and forces.

Decimus can be immobilized or hampered in both vehicle mode and robot mode if he receives severe damage to either of his forms.

If he receives enough damage or goes too long without refueling, Decimus will shut down and possibly go into stasis lock.

## Trivia

* Decimus could overcome having more than one alternate mode by merging with a Galvanic Mechamorph.
* Because he is not exactly a natural lifeform, Decimus does not have a natural predator.
* Unlike Upchuck or the aliens used by the Ultimatrices and Nemetrix, Ben cannot transform into different variants of Decimus.
* In the *Transformers* franchise, Vector Prime speculates that the Malgus universes may have interacted with the *Ben 10* universe at some time through the wider cosmos. This explains why Khyber has trophies of Lockdown's hook and Grimlock's flaming sword in his ship.