One possible plot could be that the Ashen One from Dark Souls is transported to the Marvel Universe. They might be mistaken for a new superhuman or a threat. The Ashen One's skills in combat and their ability to endure great hardships could make them a formidable force. They could team up with the Avengers, perhaps initially clashing due to misunderstandings but then realizing they share the common goal of protecting the world from greater threats like Thanos or other powerful villains. The Ashen One could teach the Marvel heroes about the concept of 'kindling' or 'linking the fire' which could be metaphorically related to the heroes' own struggle to protect their world and its various sources of power.
Another idea is that the Dark Souls' bonfires are somehow connected to the Infinity Stones. The Ashen One is on a quest to restore the bonfires, and in the Marvel Universe, they discover that the Infinity Stones have the power to do so. However, the various Marvel factions are also after the Stones for their own purposes. This leads to a complex web of alliances and betrayals. The Ashen One has to navigate this new world, making friends with heroes like Spider - Man, who is intrigued by the Ashen One's strange abilities, and fighting against villains who want to use the power of the Stones and the bonfires for evil.
The Chosen Undead from Dark Souls could be seen as a mutant in the Marvel Universe with their ability to keep coming back to life. They might be shunned at first like many mutants are, but then prove their worth when facing threats. Their combat skills with swords and shields would be a unique addition to the fight scenes in the Marvel Universe. For example, they could fight alongside Wolverine, and their different fighting styles would create an interesting contrast.
A great plot could involve a portal opening between the two worlds. Harry, Hermione, and Ron accidentally stumble through it. In the Dark Souls world, they find that their magic works differently. They meet characters from Dark Souls who are initially hostile but then realize they have a common enemy in the form of Voldemort's forces that are starting to corrupt the Dark Souls world as well. Harry has to learn the ways of the Dark Souls combat and use his wits and magic to form an alliance. They then return to Hogwarts with new powers and knowledge to face Voldemort in a final battle that combines the magic of Harry Potter and the dark and gritty elements of Dark Souls.
One possible plot could be that Ladybug and Chat Noir are somehow transported to the Dark Souls universe. They find themselves in a desolate and dangerous land, facing powerful enemies they've never encountered before. Ladybug's Lucky Charm ability might work in strange ways, like creating items that have a different use in the Dark Souls world. Chat Noir could use his cat - like agility to navigate the treacherous terrains. Together, they have to find a way back home while also uncovering the secrets of this new and menacing realm.
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.
A crossover could also have Loki from Marvel meeting the demons in Black Butler. Loki might try to manipulate them for his own gain, but the demons, especially Sebastian, are not easily fooled. This could lead to a power struggle between Loki's magic and the demons' otherworldly powers.
The combination of different worlds. Dark Souls has its own dark and complex lore, and when you cross it with Gwyndolin, it creates a whole new set of possibilities. For example, Gwyndolin's unique powers and appearance can add a new dimension to the already rich Dark Souls world.
One possible plot could be that Obi - Wan somehow gets transported to the Marvel universe. He meets Doctor Strange, who senses his strong connection to the Force. Together, they team up to fight against a new dark force that is threatening both the Jedi way and the safety of the Marvel universe.
One possible plot could be Naruto being transported to the Marvel universe. He might initially be confused but then quickly adapt his ninja skills to the new world. For example, his shadow clone jutsu could be used in a battle against some of the street - level villains in Marvel like the Hand. His ability to quickly move and his chakra control could make him a formidable ally or a target for those who want to study his powers.
One possible plot could be that Naruto characters are transported to the Dark Souls world. Naruto, with his never - give - up attitude, might struggle to adapt to the harsh and unforgiving nature of the Dark Souls realm. He could team up with some of the more benevolent Dark Souls characters to fight against the powerful bosses. Maybe he'd use his shadow clones to distract the enemies while they figure out their weaknesses.
One possible plot could be that Thanos somehow gets his hands on the Dragon Balls. He wishes for the power to snap away half of all life in the universe even more easily. The Z - fighters sense this great imbalance and travel to the Marvel universe to stop him. Goku, being the most powerful Z - fighter, tries to fight Thanos but quickly realizes his strength is different from what he's used to. Vegeta might have to team up with Iron Man to come up with a technological way to counter Thanos' Infinity Stones while Goku trains to reach a new level of Super Saiyan to take on Thanos directly.