Carnage

Carnage is a super villain in Marvel Comics and an alien symbiote spawned from Venom. One of Carnage's best known characteristics is its psychopathic personality, which the symbiote gained from its original host Cletus Kasady. Throughout its history, the Carnage symbiote has bonded with a number of hosts, but always seems to return to Kasady. Like Kasady, the symbiote is utterly murderous and psychotic, wanting little else except to indiscriminately kill others for its own satisfaction.

Cletus Kasady
Cletus Kasady is the first and most recurrent host of the Carnage symbiote. Having lived in a cycle of perpetual abuse since childhood, Kasady was completely devoid of empathy and lived the life of a serial killer. After his initial capture, he was locked away in the Ravencroft Institute for the Criminally Insane where he shared a cell with Eddie Brock, the host of the Venom symbiote.

Having been seperated from the Venom symbiote, Brock bade his time until his "other half" arrived to break him out of Ravencroft. After Brock and the symbiote reunited, Venom escaped, but left behind an offspring upon its departure. The offspring would bond with Kasady, assimilating his psychotic personality in the process and creating the "ultimate insanity" in the form of Carnage.

After escaping Ravencroft, Carnage decided to go on a killing spree across New York, commiting chaos and destruction with reckless abandon. It would take the combined effort of Spider-Man, Venom and several other heroes to finally stop his rampage, but the Carnage symbiote had merged with Kasady's bloodstream and couldn't be removed completely by force.

Ben Reilly (Spider-Carnage)
To be added

Silver Surfer (Carnage Cosmic)
To be added

Norman Osborn (Red Goblin)
To be added

Powers and Abilities
As Eddie Brock once explained, the Carnage symbiote was born with abilities even more singular than those of its progenitor due to the fact that it gestated in an environment alien to it—Earth. As a result, Carnage is capable of utilizing his powers in a trickier and deadlier manner than Venom would, in spite of inheriting the latter's powers. Kasady himself lacked superpowers of his own, but his insanity and murderous urge acts as fuel to bolster his and the symbiote's strengths, making them challenging a adversary even for Venom and Spider-Man himself.


 * ESP (Spider-Sense): Like Venom and Spider-Man, Carnage possesses ESP ability due to his symbiote, which can relay information to him from any angle and grants Kasady the ability to "see" in any direction, warning him of any danger and threat. This power is even more efficient than Spider-Man's and Venom's because it discerns the specific nature of impending threats and informs him in plenty of time.
 * Immunity to Spider-Sense: Due to gestating from the very symbiote that once possessed Spider-Man, Carnage is capable of attacking Spider-Man without alerting him. Surprisingly, after encountering both Spidey and Venom, Carnage was able to adjust this power so he could also avoid alarming Venom whenever he attempted to attack him.
 * Wall-Crawling: Much like Spider-Man and his symbiote parent Venom, Carnage has the ability to cling to any surface. He can rapidly crawl, walk, or run across even slick/wet surfaces.
 * Haemokinetic Shapeshifting: Because his symbiote was mixed with his bloodstream during the bonding process, said symbiote's inherent shapeshifting abilities became enhanced to the point that Carnage can manipulate blood in addition to the symbiote's own mass. In fact, he can restore his symbiote back to full health by bleeding alone.
 * Blood Weapon Constructs: Carnage can fashion weapons, tendrils, and other objects out of his symbiote-infused blood.
 * Symbiotic Costume: Carnage can envelop his body within a sentient, malleable but durable suit complete with eyes, claws and a mouth with powerful jaws and sharp teeth while increasing the body mass, turning him into powerful opponent.
 * Construct Creation: Carnage can create weapons from his blood-infused mass, including blades, flails, darts, spikes, and claws. Said constructs can be detached from his body as projectiles or thrown weapons where they disintegrate few seconds after being separated from his body, preventing his foes from using said constructs against him.
 * Blood Web Generation: Carnage can project an organic web-like substance on the same vein with Venom, though his version of said ability much more advanced since he can manipulate the web's trajectory like guided missiles since the substance is made of his symbiote-infused blood.
 * Tentacle Extension: Carnage can also form tentacles out of his blood-infused symbiote mass at will.
 * Clothing Generation: Carnage can also fashion clothing out of his blood-infused symbiote mass.
 * Stretching and Deforming: Carnage has full control over the size, shape, color (usually red and black), texture, and hardness of his symbiote (and any part thereof). He is even able to use this ability in full effect both for defense by deflecting bullets and other projectiles in an offensive manner by using his foe's strengths against them (an instance can be seen when Spidey goes for aiding Venom whom held Carnage as he was beating him, Carnage retaliates by deforming his body to ensnare and toss his opponent aside simultaneously).
 * Superhuman Durability: Carnage can withstand greater punishment than normal humans thanks to the durability of his symbiotic suit.
 * Regenerative Healing Factor: Carnage is able to rapidly regenerate damaged body tissues much faster and more extensively than any ordinary human is capable of and even lost or destroyed tissues that would be fatal to ordinary humans. He can fully regenerate severed limbs or missing internal organs. He was fitted with artificial legs after being torn apart by the Sentry, but this occurred while he was separated from the symbiote.
 * Disease Immunity: Kasady is also immune to the effects of all Earthly diseases and infections as long as he remains bonded with the symbiote.
 * Superhuman Strength: Carnage is surprisingly stronger than combined forces of Spider-Man and Venom. This is quite interesting due to the fact that during the time he and Brock spent in prison, Brock stated that Kasady preferred to be lazy than performing exercise, which means his strength comes entirely from his symbiote.
 * Superhuman Speed: Carnage can run and move at speeds superior to these of any normal human being.
 * Superhuman Agility: Carnage's agility, balance, and bodily coordination are all enhanced to levels that are beyond the natural physical limits of the finest human athlete, even more than Venom and Spider-Man.
 * Memory Implantation: Carnage's tendrils can be used to plant thoughts into a person's head, and is typically used to drive them insane from experiencing his nihilistic worldview.
 * Adaptive: Carnage's symbiote can rapidly adapt to new environments; when Kasady was taken into space by the Sentry, the Carnage symbiote was able to save his life by growing small sacks around his mouth that converted carbon dioxide into oxygen, allowing Kasady to stay alive long enough for him to be recovered.
 * Insanity Empowerment: It should be noted that prior to being bonded to Venom's newborn spawn, Kasady lacked superpowers of his own, but had a maniacal will and insane worldview that he has had from the age of 8 years old onward. As result, when Kasady merged with the offspring of Venom's symbiote and became Carnage, the said symbiote would feed on his hatred and rage towards the world, increasing his strength by leaps and bounds.