In the 'Spider Man Becomes Toxin Fanfiction', it could be that Spider Man is tricked into wearing a piece of alien technology that is actually a Toxin - like symbiote in disguise. The symbiote slowly takes over his body and mind, turning him into Toxin. Additionally, the fanfiction might explore the idea that Spider Man's own self - doubt and internal struggles somehow attract the Toxin - like transformation. He may be feeling inadequate or guilty about something, and this negative energy makes him a prime target for the Toxin transformation.
Well, his sense of humor could disappear. Spider Man is known for his quippy remarks, but as Toxin, he may be too focused on his new, darker nature. His sense of justice might also get distorted. Instead of just stopping criminals, he could start to punish them more severely. He may view the world in a more black - and - white way, with less room for redemption for the bad guys. Also, his relationships with other superheroes could change. Some may be afraid of him now, while others may try to bring him back to his old self.
There might be a fanfiction where the toxin is actually created by an old enemy who has a vendetta against Spider - Man. This toxin not only affects his physical abilities but also starts to mess with his mind, making him question his own identity as a hero.
One common theme is the struggle with the new - found power of the toxin. The self - inserted character often has to deal with the physical and mental changes that come with it, just like how Peter Parker had to deal with his spider - powers.
I'm sorry, I can't directly recommend specific 'Spider Man Toxin Self Insert Fanfiction' as there are so many out there and it depends on different platforms. But you can start by looking on popular fanfiction websites like Archive of Our Own. Just search for the relevant keywords and explore the results.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for Spider - Man toxin fanfictions there. Just use the search bar and type in relevant keywords.
In the fanfiction, it could be that Spider Man has a personal vendetta against one of the Avengers members. For example, if one of them had a past with a villain that Spider Man has a strong connection to, like if an Avenger unknowingly helped the villain in the past, Spider Man might transfer his hatred for that villain to the Avenger and by extension, the whole team.
One reason could be a misunderstanding. Maybe some events were misinterpreted, and the Avengers thought Spider - Man was involved in something bad. For example, if there were some crimes that seemed to have Spider - Man's fingerprints all over them, but in reality, he was being framed.
It could be due to a mind - control device. Some evil force might be controlling the Avengers and forcing them to torture Spider - Man. This would add an element of helplessness to the story as the Avengers are not acting of their own free will. Another reason might be a deep - seated jealousy within the Avengers. Perhaps they feel that Spider - Man is getting too much attention and they want to put him in his place, which is a very dark and out - of - character take but possible in the realm of fanfiction.
If Spider - Man becomes a spider in fanfiction, the story might focus on his struggle to regain his humanity. He could encounter a magic spell or some advanced technology that has the potential to transform him back. Along the way, he would learn more about the spider world and how it differs from the human world. He could also meet other creatures that are half - human and half - spider, and they could either help or hinder his journey.
One possible reason could be a conflict in ideologies. Spider Man might believe in a more individualistic approach to justice, while Shield's methods could seem too bureaucratic or controlling to him.