Well, it happened when the symbiote found Cletus Kasady. This combination of a powerful symbiote and a deranged mind gave birth to Carnage. The symbiote's influence amplified Kasady's evil tendencies, making him a truly terrifying force.
In carnage novels, the carnage often serves to highlight the darkness within human nature. For example, in 'American Psycho', the extreme acts of violence show how a seemingly normal person can be consumed by their own inner demons. It's a shock factor that forces readers to confront the idea that there might be a hidden capacity for such brutality in all of us.
Sure. Given the popularity of both Naruto and the concept of Carnage, it's not far - fetched that such a fanfiction exists. It might be a niche piece, but it could attract readers who are interested in seeing how the values and abilities of Naruto would mesh with the dark and brutal nature of Carnage. Maybe it's about Naruto being possessed by a Carnage - like entity or having to fight an inner Carnage - like demon.
Carnage is a major villain. He's basically an even more dangerous and unstable version of Venom. His symbiote gives him enhanced strength, speed, and the ability to shape weapons and appendages. He's known for his psychotic and unpredictable behavior.
Well, in kurapika and neon fanfiction, a common theme could be the contrast in their worlds. Kurapika is from a tragic background with his clan's destruction driving him. Neon, on the other hand, is a part of a wealthy and powerful family. Fanfic writers may play with the idea of how these two from such different walks of life come to understand each other. Maybe Kurapika sees in Neon a glimmer of innocence that he wants to protect, or Neon could be intrigued by Kurapika's mystery and strength.