The cultural clash. The Marvel heroes come from a world with a different set of values compared to the more survival - based world of Attack on Titan. Seeing how they interact and try to understand each other's motives would be really engaging. For example, Steve Rogers might try to instill his sense of justice and freedom in the characters of Attack on Titan, while they might show him the harsh realities of their world.
A really cool plot could be that some of the Attack on Titan characters gain superpowers from the Marvel universe. For example, Mikasa could get some sort of enhanced combat abilities like Black Widow's training but on steroids. And the Survey Corps could learn new technology from Tony Stark to better fight the Titans. Also, Loki could play a devious role in the crossover, causing chaos between the two worlds by manipulating both sides.
One exciting plot twist could be Ben using his alien forms in unexpected ways within the Attack on Titan world. For example, using Heatblast to melt through the Titans' hard exteriors in a crucial battle. Another could be a character from Attack on Titan getting the Omnitrix and having to learn how to use it. This would completely change the power dynamics in the story.
Well, it could be amazing. Imagine the Survey Corps teaming up with the Avengers. Eren could use his Titan powers alongside Thor's godly strength. Maybe they'd be fighting a common enemy like Thanos who has somehow made his way to the Attack on Titan world. The different powers and personalities would create really interesting dynamics.
I think an unexpected pairing would be Thor and Levi. Thor is this powerful god from Asgard, used to grand battles and magic, while Levi is a very skilled and no - nonsense human from the Attack on Titan world. They would probably clash at first due to their different personalities, but then learn to respect each other's skills.
Well, it could be about the Survey Corps teaming up with the Avengers. Maybe Eren's titan form could be as strong as the Hulk in a battle against a common enemy like Thanos. The Scouts' ODM gear would be an interesting contrast to the high - tech gadgets of the Marvel heroes.
Well, in many of them, the first encounter between Godzilla and the Titans is always exciting. It's like two huge forces colliding. For example, in some stories, Godzilla's atomic breath against the Titans' powers creates a really intense moment.
One interesting plot point could be Spiderman trying to understand the complex politics and social structures in the Attack on Titan world. Another could be him using his scientific knowledge to find a new way to defeat the Titans. For example, he might create a special web - based formula that can immobilize them.
One possible intriguing storyline could be the characters from Attack on Titan somehow ending up in the One Piece world. For example, Eren could use his Titan powers in the middle of the Grand Line, causing chaos among the pirates and marines alike. Another idea is that the Straw Hat crew might find themselves in the walls of Paradis Island and have to deal with the Titans while also trying to find a way back to their own world. Maybe Luffy would try to befriend some of the Survey Corps members, like he does with most people he meets.
Well, a frequent theme is the exploration of different technologies. In a crossover with a sci - fi world like 'Star Wars', the technology of lightsabers and starships contrasts with the more primitive weapons in 'Attack on Titan'. This creates a theme of technological adaptation. Another common theme is moral conflict. When 'Attack on Titan' characters meet characters from a world with different moral compasses, they have to grapple with new ethical dilemmas. For example, in a crossover with 'Game of Thrones', the cut - throat politics and different concepts of loyalty would cause moral clashes.
A really interesting plot point is the clash of cultures. In Attack on Titan, it's a post - apocalyptic world with a focus on survival against the Titans. In Black Butler, it's a more refined, Victorian - era world. When these two worlds collide in fanfiction, it creates a unique dynamic. For instance, the way the Black Butler characters react to the Titans and the harshness of the Attack on Titan world can be very engaging.