Jennifer Hathaway (Earth-616)

Early Life
Jennifer was born in Iowa. She served a normal life, heading to school, until the age of 15, when The Xavier Institute for Higher Learning contacted her with a proposal to join them. She accepted, however, upon arrival it was discovered that her powers were unknown. These were soon discovered after she faced off against Empath, who had attacked the school, seemingly unaffected by his powers and defeating him in fisticuffs. Xavier informed her of her powers, and advised her that she seemed to be trained in her ability. Despite this, she stayed on at the institute.

Whilst the heroes in the Secret Wars returned to Earth, a segment of the Venom symbiote which stayed in the machine travelled with them and found itself in Jennifer's apartment. It attempted to bond with her, throwing her out of her own window as she fought it and attempted to bring herself out of harm's way, collapsing on the road. An ambulance arrived to help her, but she swatted away the medics and caused the police to arrive as she unwillingly punched through an Ambulance's engine. They opened fire on her as she fought them off, escaping to a rooftop where the symbiote attempted to take her mind, accidentally giving her control as it found out her mental resistance.

Her First Villain
Rhino, or Aleksei Sytsevich, was running through Manhattan just three days after Venom attempted to take Jennifer. He was looking for Spider-Man, threatening to destroy the city if he didn't show up. He was hit on the back by a web, tugging at the web and hearing someone slam to the ground.

Looking round, he quickly realised that the person was unharmed and that it was not Spider-Man, but a new competitor. Rushing at her, she quickly formed a shield running down her arm with the symbiote, managing to weaken the blow, although she was still pushed back. Laughing a little, she covered herself in the venom suit, increasing her muscle mass greatly, the Rhino rushing at her once again. However, this time she charged back, sidestepping him and grabbing his horn as she pulled him to the ground.

Shocked, he attempted to get up and flee, although he was simply pulled down again, this time recieving a punch to the chest. However, this did not injure him with his suit protecting him. As such, Jennifer returned to her normal weight and began to rush to the New Croton Dam, where she tricked him into slamming into the reinforced wall, causing his horn to get stuck, before webbing him to the wall and awaiting the arrival of the armed forces.

Whilst she waited from a distance, she considered what he had called out about trying to find Spider-Man, and why he'd want to find a fellow villain. This gave her further exposure to the civillains and a more positive output than her battle with Spidey.

Decimation
After the House of M, Jennifer Hathaway was one of the mutants affected by Scarlet Witch's reality altering wave. Once she lost her powers the symbiote fully merged with her and began to go on a rampage using her body. She was stopped by the Avengers before she could cause any fatalities and placed in containment. While she was there, she made a mutual agreement with her symbiote - that it's control over her body would be allowed, but still in times dictated by her. She was granted freedom with supervision. They proved themselves faithful to their word and were granted full freedom again.

Powers
Venom Symbiote: The symbiote, after permanently bonding with her, gave her many powers, which include:
 * Superhuman Strength: Now bonded with the Venom symbiote, her strength has been increased to allow her to lift about 70 tons in her regular size. This is not her true limit as her strength increases with his variable muscle mass.
 * Superhuman Stamina: Now that the Venom symbiote has bonded itself to her, she is capable of exerting herself at peak capacity for about 24 hours.
 * Superhuman Durability: The Venom symbiote grants her superhuman durability. When distributed at a typical thickness over Hathaway's body, the Symbiote is capable of absorbing bullets from small-arms weapons firing conventional ammunition. She is also capable of surviving in harmful areas for long periods of time such as underwater or in toxic gases, the symbiote filtering breathable air for her.
 * Accelerated Healing Factor: Additionally, the symbiote is capable of healing injuries in her at a faster rate than normal human healing allows. The symbiote is even capable of healing injuries and illness that current human medical care cannot such as cancer.
 * Wall-Crawling: The alien costume also replicates Spider-Man’s ability to cling to walls by controlling the flux of inter-atomic attraction between molecular boundary layers.
 * ESP (Spider-Sense): Jennifer is also granted an extrasensory ability similar to Spider-Man’s spider-sense. This response is not as complicated as Spider-Man’s inherent sense since the alien costume can detect danger from every direction and conduct Jennifer in plenty of time. It's a lot more efficient than Spider-Man’s spider-sense because it takes less time to sense the danger, and Hathaway's reflexes are faster than Spider-Man's, because they are enhanced by the alien costume - for instance, she can dodge a gunshot or a barrage of bullets.
 * Immunity to Spider-Man's Spider-Sense: Due to Spider-Man being a host to the symbiote, she is able to bypass Spider-Man's spider-sense. As such, Jennifer is capable of attacking Spider-Man without alerting him, making her a deadly opponent. Thankfully for him, although they are not very friendly, they are on good terms with one another.
 * Camouflage Capabilities: Adamant can also use the same substance comprising the symbiote in the form of constituent black matter or she can generate tentacle-like appendages from various parts of his body, which she often uses either in combat situations or to restrain someone.
 * Constituent-Matter Generation: Adamant can also use the same substance comprising the symbiote in the form of constituent black matter or she can generate tentacle-like appendages from various parts of his body, which she often uses either in combat situations or to restrain someone.