Sherlock Holmes could be an exciting crossover. Imagine the logical and observant Holmes trying to solve a mystery that involves Blackbeard's pirate activities. Blackbeard, on the other hand, would be trying to outwit Holmes and continue with his piratical ways. It would be a clash of two very different worlds - the world of piracy and the world of Victorian - era detective work.
A crossover with Gandalf from 'The Lord of the Rings' would also be fascinating. Gandalf's magic and wisdom against Blackbeard's brute force and pirate cunning. Maybe Gandalf is trying to stop Blackbeard from getting his hands on a powerful magical item that has found its way into the pirate's world. It would create a story full of epic battles and moral dilemmas.
One interesting plot could be Blackbeard traveling to an alternate universe where the roles in the One Piece world are reversed. For example, pirates are the law - enforcers and the Marines are the outlaws. Another plot could involve Blackbeard teaming up with a character from a different anime in a crossover event. Maybe he partners with Naruto to search for a powerful treasure that has somehow ended up in the Naruto universe. A third plot could be Blackbeard losing his powers and having to start from scratch in a world where all the other One Piece characters have forgotten who he is, and he has to regain his status and power in a new and unexpected way.
Blackbeard would probably be very interested in the magic in the Fairy Tail world. He might try to steal some of the powerful magic items or learn magic for himself. He could see the mages as a threat to his plans if they oppose him, but also as potential allies if he can manipulate them. He would likely use his cunning and power - hungry nature to his advantage in this new world.
Power struggles are a popular theme in Blackbeard crossover fanfiction. He might be in a situation where he has to compete with a powerful wizard or a super - powered hero for control of a certain area or a magical artifact. This creates intense and action - packed scenarios as he tries to use his pirate wits and skills against these new and often more powerful foes.
One interesting character to crossover with Ichigo is Light Yagami from Death Note. The clash between Ichigo, who is a protector, and Light, who is a morally ambiguous character with the power to kill, would be very engaging. Saitama from One - Punch Man could also be a great choice. Saitama's overpowered nature and Ichigo's journey to become stronger would make for an interesting story. And what about Alucard from Hellsing? His vampire powers and Ichigo's powers related to the afterlife would create a really dark and exciting crossover.
Skeletor from He - Man is really interesting. His evil nature and magic powers create a great contrast with the Thundercats' more heroic and noble qualities. It leads to some intense battles and power struggles.
Nightwing would be an interesting character to pair with Starfire in crossover fanfiction. They have a history in the DC universe, and in a crossover, their relationship could be explored further in new and different settings. Another one could be Spider - Man. The contrast between her alien powers and his more street - level superhero abilities would make for an exciting story.
Phos from 'land of the lustrous' is an interesting character to include. Their complex character development throughout the original series can bring a lot to a crossover. Another could be Kongou, as their role as a sort of authority figure can create interesting dynamics in a crossover. And characters from other universes with strong personalities, like Naruto from the 'Naruto' universe, can also be great as they can contrast or complement the 'land of the lustrous' characters.
One character that would be great in a BioShock Infinite crossover fanfiction is Solid Snake from "Metal Gear Solid". His stealth and combat skills would be very useful in Columbia. He could infiltrate the strongholds of the bad guys and gather intelligence. Another interesting character is Sonic the Hedgehog. His super - speed could be used to quickly move around Columbia, and his spin - dash could be a new form of attack against the enemies there. Additionally, Katniss Everdeen from "The Hunger Games" could be an interesting addition. Her archery skills and survival instincts would be valuable in the dangerous world of Columbia. She could team up with Booker to fight against the tyranny in the city.
One character that would make for an interesting crossover is Dr. Temperance Brennan from Bones. She is very methodical and scientific like House, but also has a different approach to her work. In a slash crossover, they could bond over their shared love for solving mysteries, whether it's medical or forensic. Also, Batman could be an interesting choice. He has his own set of skills and a dark past, and his interactions with House could be really exciting, especially when exploring a slash relationship where they might have to rely on each other in unexpected ways.
In a crossover with the DC Universe, Batman could be an interesting character. Batman, who also had a tragic past, could understand Naruto's feelings of being neglected. He could take Naruto under his wing and train him in new combat and detective skills. Another interesting character could be Superman. Superman, with his kind - hearted nature, could show Naruto what a real family should be like, as he has the Kents as his loving family.