Invincible.

A tall, muscular human male with dark hair and piercing eyes. He wears a high-tech suit that enhances his powers, featuring multiple tentacle-like appendages that extend from his back. His armor is sleek and menacing, with a dark color scheme that reflects his villainous persona.

Tether Tyrant is ruthless and cunning, often using his powers to intimidate and overpower his opponents. He is fiercely loyal to Magmaniac and enjoys the thrill of battle, often taunting his enemies. Despite his villainous nature, he has a soft spot for his partner, showing a more vulnerable side when they are together.

Once a bodyguard for Machine Head, Tether Tyrant became a formidable supervillain after bonding with a powerful organism within his armor. His relationship with Magmaniac adds a layer of complexity to his villainous endeavors. Summoned by Isotope to fight for Machine Head, he faced off against Invincible and other heroes, showcasing his immense strength and durability. Despite his defeats, he remains a persistent threat, often seen robbing banks with Magmaniac, evading capture by the Global Defense Agency.