Metallix

Metallix (メタリックス) is a major antagonist in the Azure Shard Arc. This is the original depiction of Basil, as created by Alex Guy.

Metallix was the highest ranking officer in the entire Frost Force and was the most powerful soldier that Frost had. After hearing about Nico's death, Metallix underwent an enhancement procedure via Dr. Wrath, emerging stronger than ever and allowing him to engage Team Silver.

Upon defeat, he fused with his twin brother Steeler to create Steelix but was beaten and killed by Silver and Nexus' own fusion, Never.

Appearance
Metallix is a short and very muscular man. Metallix's demon genes make him immortal, giving him an appearance of someone in their late-20s, when he is actually 69-years-old. He wears futuristic dark silver colored battle armor, with dark silver boots. He also has black plates on his shins. Being a demon, Metallix has red eyes that can be used to petrify enemies and turn them into stone. Metallix has sharp teeth, and has three retractable claws on each hand, just like the Marvel superhero/anti-hero Wolverine. His battle helmet also has a spike on the top.

Personality
Metallix's red eyes, raspy voice (before fusing), his description as a "demonic super soldier", his shadow-like appearance, and his vicious fighting suggests a demonic personality and heritage. However, he expresses deep sadness over the loss of his best friend during the Frost Saga at the hands of Silver. He is also shown to care deeply about his teammates, but is still very strict and harsh on them if they fail, even going as far as executing one of his teammates. Metallix does not seem to get along very well with his older brother Steeler, however they can quickly get on board when in extreme situation and agreed to fuse to form Steelax.

Background
Not much is known about Metallix, though it is hinted of a demonic heritage, which he later confirms. At some point, he and his twin brother Steeler discovered the ability to fuse into a single, more powerful being. Along with his best friend Nico, he ended up joining the Frost Force, lead by the titular tyrant, Frost. Training to be the most elite soldier, Metallix became a much faster, stronger, and better fighter overall.

Azure Shard Arc
Metallix and Nico arrive on Xena Prime and begin to take civilians into pods, arranging them to be sold to the highest bidder. The two depart as they take separate paths, with Nico going to find more civilians, and Metallix heading to Frost's castle for further instruction.

Two days later, after learning of the death of Nico at the hands of Silver, Metallix vows to make Silver pay and trains even harder, participating in a super soldier project conducted by Dr. Wrath, the Frost Force's chief scientist.

During Silver's attack on the Frost Ship and Frost's castle, Frost himself hides to a hidden room with Shirou as hostage as Dr. Wrath finishes his newest creation, Shadow, a robot clone of Silver. Metallix and his team are sent by Frost to kill Silver and his friends, but Metallix's team is quickly defeated. Using his shadowy appearance as a disguise to initially hide in the shadows, he reveals himself and reminds Silver of what he had done to Nico. Metallix and Silver begin to fight and the fight quickly appears in Silver's favor, until Metallix begins using his demon abilities with underhanded tactics.

Despite being wounded, Silver gathers enough willpower to continue his assault on Metallix, however, to quickly end the fight, Metallix successfully poisons Silver and leaves him to die, while using his powers to freeze the others as they slowly turn to stone. Nexus appears, however, and manages to surprise Metallix, overwhelming him and afterward goes to free the others. After Silver is healed, he powers up and, using support from his team, manages to defeat Metallix.

Metallix's weaker twin brother Steeler arrives on the scene and the two fuse, creating Steelix. While Steelix seems equal to Silver, he still cannot beat him and thus powers up to finally gain an advantage. Suddenly, Shirou, who had escaped, arrives and uses her powers to combine Silver and Nexus into the fusion, Never, who completely dominates the battle. Metallix and Steeler separate and run off to hide, though they are both found and killed. Silver and Nexus defuse are immediately bombarded with missiles launched by Shadow.

Trivia

 * Metallix is based on the mythological beast known as the Basilisk. Metallix's ability to freeze and slowly petrify enemies by staring at them is also a reference to the Basilisk's abilities.
 * Metallix's transformation after the super soldier project is a reference to the Weapon X program from the X-Men series and the super soldier project from the Captain America series.
 * The "super attack" that Metallix uses on the poisoned Silver is very similar to Vega's ultra combo "Bloody High Claw" introduced in Street Fighter IV.
 * Metallix holds many similarities to Wolverine of the X-Men series, such as being the result of a "super soldier" experiment, having 3 claws per hand that can be drawn out and retracted, and his ruthless nature.