Don't forget villains. They are also important characters in this kind of fanfiction. There could be a villain who is jealous of the Avengers' strong family bonds and tries to break them apart. This villain could be someone new or an old enemy with a new vendetta related to the concept of family.
One idea could be the Avengers facing a threat that specifically targets their families. For example, a villain discovers the identities of their loved ones and uses it against them. This would force the Avengers to not only protect the world but also their own families.
Well, in such a fanfiction scenario, the Avengers might initially struggle against Venom. Venom is extremely powerful and has a ferocious nature. However, the Avengers have the advantage of teamwork. For example, Black Widow could use her stealth and combat skills to distract Venom while Hulk smashes into him. And Doctor Strange could use his magic to try and separate Venom from his host if possible.
It's really hard to say who would win. The Avengers are a powerful team with diverse abilities, but Venom is no pushover. If the Avengers can work together well, they might have the upper hand. But if Venom manages to isolate and take down some of the Avengers one by one, he could win.
It could strengthen their relationships. When the Avengers watch Tony fight Thanos, they see his courage and determination. This might make them respect him more, especially those who had doubts about him before. For example, Clint Barton might see Tony in a new light and be more willing to work with him in future battles.
Oh, for sure! Thanos squared off against the Avengers multiple times in the comics. Their clashes were intense and had a huge impact on the comic universe.
Well, it could start with Spider - Man being framed for a crime he didn't commit. The Avengers believe in his innocence. They fight for him against a corrupt government agency that wants to arrest him. Along the way, they discover that there's a bigger conspiracy at play. Black Widow uses her espionage skills to gather intel, Hulk provides the brute force when they face the agency's armed forces, and the other Avengers contribute in their own ways to clear Spider - Man's name and protect him from harm.
He would bring a whole new dimension of power. His magic could be used for offense, like powerful curses, and defense, such as protective enchantments. The Avengers might be initially skeptical, but once they see what he can do, they'd welcome him. For instance, he could create a magical shield around the team using a spell like 'Protego Maxima' which could withstand Thanos' attacks better than their normal shields.
One possible scenario could be that the Darcy family has some special glasses that play a role in an Avengers - related fanfiction. Maybe these glasses have some sort of technological power, like being able to detect hidden threats or enhance the wearer's vision to see through illusions created by villains. In the fanfiction, a member of the Darcy family might be an ally of the Avengers and use these glasses to help the superheroes in their battles.