Inertia is the name of two separate but related fictional superheroes appearing in American comic books published by Marvel Comics. Various incarnations of Inertia The first Inertia was a character from Earth-712 (the world of the faux JLA characters known as the Squadron Supreme). Like most of the newer characters created for the Squadron Supreme mini-series, Inertia's counterpart in the Detroit Justice League was Vixen. Her powers were based on the use of kinetic energy against the enemy. The second Inertia was a member of the rebooted Squadron Supreme, from the Supreme Power universe, also known as Earth-31916. Inertia (Squadron Supreme) Fictional character biography Edith Freiberg had the power to absorb and redirect kinetic energy (motion). After being recruited by Nighthawk to the team of superpowered "Redeemers", she was one of the Redeemers who joined the Squadron Supreme's "Utopia Program" in hopes of stopping it. Inertia was then revealed to have joined the Squadron Supreme as a double agent. During her time in the Squadron Supreme, she developed a romantic relationship with Haywire. Alongside Nighthawk's Redeemers, she attacked the Squadron Supreme. During the encounter, she battled Power Princess, but was defeated by Doctor Spectrum. Alongside the Squadron Supreme, Professor Imam, and Master Menace, Inertia attacked the Nth Man, a universe-absorbing entity that was encroaching into the Earth-712 universe. Inertia died after an attempt to use her powers against the Nth Man backfired, as he was too large an entity for her to absorb the kinetic energy from, and her body was overloaded by a surge of energy that caused her to disperse in a pink haze. Powers and abilities Inertia had the ability to transfer "inertia" (actually momentum) from one person or object to another. Inertia (Supreme Power) Edith Freiberg is a lesbian Army private, first introduced in Part III: High Command where she is seen trashing a bar and attacking several men (using her powers to redirect kinetic energy) before being introduced to the public as part of the Squadron Supreme. She is portrayed as having problems with men and with authority and in issue #4, her back story is fleshed out. Edith's father was the head of an ultra-conservative church and a highly prejudiced and abusive man. Her powers manifested at a young age when a nurse trying to give her a vaccination could not get the needle through her skin. Her father believed this was a sign