A very interesting one is when the Joker teams up with Loki in a fanfiction. It creates chaos as the Avengers have to deal with Loki's magic and the Joker's insanity at the same time. Batman has to use all his skills to stop this unholy alliance. This crossover combines the unpredictable nature of both universes in a thrilling way.
The crossover where Batman takes on the role of a strategist for the Avengers during a major battle against an alien invasion. His tactical mind helps the Avengers in a way they've never experienced before.
One interesting crossover is when Superman's code of ethics clashes with the Avengers' more flexible approach. It creates a lot of drama and character development. For instance, in some stories, Superman has to decide whether to follow the Avengers' plan which might involve a bit of collateral damage, something he's not used to in his own world.
The cultural clash is also a really interesting aspect. Kagome comes from a very different cultural background than the modern - day Avengers. So seeing how she reacts to things like Stark's flamboyant lifestyle or Captain America's old - fashioned values can make for some great reading. In some fanfictions, this clash leads to humorous situations as well as deep character growth for both Kagome and the Avengers.
Crossovers that involve the villains from both universes teaming up are also quite fascinating. For example, Loki from the Avengers and Orochimaru from Naruto joining forces. The heroes then have to come up with a strategy that takes into account the different powers and motives of these two very different villains. It's a great way to create high - stakes situations and see how the heroes from two different universes can work together to overcome a common foe.
The crossover where Batman teams up with the main characters of Farscape to fight a common enemy is really interesting. It shows how different their approaches are yet how they can work together effectively.
When Ultraman's enemies team up with some of Batman's rogues gallery. For example, if Lex Luthor teams up with an Ultraman villain to create a super - weapon. This forces Batman and Ultraman to put aside their differences and find a way to stop the combined threat. It's a great concept that allows for a lot of action and strategic planning in the fanfiction.
Another great crossover could be Dean Winchester and Captain America. Dean is a tough hunter, used to fighting all kinds of monsters. Captain America is a symbol of justice and heroism. If they meet, they could exchange their combat skills and values. Maybe Dean could teach Cap some of his street - smart fighting techniques, and Cap could inspire Dean with his selfless and patriotic spirit.
One interesting crossover is when the Hulk is transported to Westeros. His brute strength would be a force to be reckoned with in the battles there. He could easily take on entire armies by himself. The people of Westeros would be both terrified and in awe of him. Another cool crossover is Black Widow in King's Landing. She could use her espionage skills to navigate the political intrigue of the court. Her charm and intelligence would make her a formidable player in the game of thrones.
The crossovers where the Avengers have to deal with Gravity Falls' supernatural villains are really interesting. For instance, when they face Bill Cipher. It's fascinating to see how the Avengers' powers stack up against such a powerful and otherworldly foe.
One of the most interesting crossovers is the one that focuses on the family dynamics. The Umbrella Academy has its own complex family relationships, and the Avengers also have their own kind of 'found family' dynamic. When these two aspects are combined in a fanfiction, it can lead to some really emotional and thought - provoking moments. For example, when Captain America tries to give some leadership and family - like advice to the Hargreeves siblings, or when Diego tries to teach Hawkeye some new combat moves based on his own unique fighting style.
In some Batman vs Avengers fanfiction, a great plot twist is when Batman manages to hack into the Avengers' communication system and makes them fight among themselves. He then uses the chaos to his advantage. Another cool twist is that there's a greater threat looming, and Batman and the Avengers have to put aside their differences and work together. But as they do, they discover that one of the Avengers has been replaced by a shape - shifter, and Batman has to figure out who it is before it's too late. There could also be a plot twist where Batman uses a device that actually amplifies his own strength and skills to the point where he can match the Avengers' superpowers, at least temporarily.