Power struggle is a common theme. The Prototype characters often have different and sometimes more brutal powers compared to the Justice League. So, there's always this tension of who is more powerful and how they'll use their powers in a crossover.
One popular 'prototype justice league crossover fanfiction' is 'Prototype Meets the Justice League: A New Alliance'. It combines the dark and gritty world of Prototype with the heroic and diverse Justice League. The story often involves Alex Mercer interacting with Superman and the others, creating some really interesting power - play scenarios.
One idea could be that Alex Mercer from Prototype finds himself in the Justice League's universe. He could initially be seen as a threat by the League. But then, they realize his power could be used to fight a common enemy, like Darkseid. Mercer's shape - shifting and regenerative abilities would add an interesting dynamic to the team's combat strategies.
One idea could be that Tsunade is brought to the Justice League's universe through some sort of magical portal mishap. She could use her medical ninjutsu skills to help treat injured Justice League members, like when Superman gets hurt by a kryptonite - based weapon. Her tough - as - nails attitude would also make for some interesting interactions with Batman, who might be intrigued by her no - nonsense approach.
Definitely Alex Mercer. His powers are so unique compared to the Justice League members. He can shapeshift into anyone, has superhuman strength, and can regenerate from almost any injury. This would create a lot of interesting interactions with the League. For example, he could transform into Superman to test the limits of his own power against the real Superman, which would lead to a really cool showdown.
In a fanfiction, the Ghost Rider could form an alliance with Batman. Batman would be intrigued by the supernatural element that Ghost Rider brings. They could team up to take on villains who are using magic or other dark forces. Ghost Rider's powers of hellfire and his unearthly strength would be a great asset to the Dark Knight's strategic mind.
In a strange turn of events, a portal opened up and Vegeta found himself in Gotham City, home of Batman. Vegeta was confused but ready for a fight. Batman, always cautious, observed Vegeta. Eventually, Batman convinced Vegeta that there was a greater threat that required their combined efforts. The Justice League, including Wonder Woman, Flash, and Aquaman, joined them. Vegeta was impressed by their diverse abilities. During the battle against a mind - controlling villain, Vegeta's brute strength and the Justice League's strategic planning worked in harmony. Vegeta learned about teamwork from the League, and they all respected his warrior spirit in the end.
Tsunade would have an interesting dynamic with Wonder Woman. They are both strong female characters. Wonder Woman would likely respect Tsunade's leadership skills and combat abilities. Tsunade, on the other hand, might be impressed by Wonder Woman's god - like powers.
In a Young Justice and Justice League crossover fanfiction, character development can occur in multiple ways. Firstly, the less - experienced Young Justice members can learn from the Justice League's vast knowledge and experience. A character like Robin in Young Justice could gain new insights into detective work from Batman. On the other hand, the Justice League members can be inspired by the Young Justice team's energy and fresh perspectives. Superman might see the determination of a young hero like Superboy and start to reevaluate his own approach to heroism. Also, characters can develop through shared traumas. If they face a particularly difficult villain who causes a lot of destruction, they might all grow in their empathy and understanding of the importance of protecting civilians.
One possible fanfiction could involve the Phantom Troupe's unique abilities clashing with the superpowers of the Justice League members. For example, Chrollo's nen ability to steal other's abilities might be a huge threat to the League. Maybe he targets Superman and tries to steal his super strength. This could lead to an epic battle where the League has to figure out how to counter the Troupe's devious tactics.