Ganondorf and Loki would be a very interesting pairing. Both are villains with a thirst for power. They could scheme together to take over both the Hyrule and the Marvel universe. Ganondorf with his brute strength and dark magic, and Loki with his trickery and illusions. They could create all sorts of chaos and be a formidable duo for the heroes of both universes to face.
Zelda and Doctor Strange would make a great pair. Zelda has her powerful magic related to the Triforce and the ancient magic of Hyrule. Doctor Strange is a master of the mystic arts. They could exchange knowledge about different forms of magic, and work together to solve a mystery that involves both the magical realms of Hyrule and the Marvel universe, like a threat that is causing disruptions in the fabric of both worlds.
Link and Black Widow would be an interesting pairing. Link is a stoic hero with his own code of honor, and Black Widow is a trained assassin with a complex past. They could learn from each other's combat styles. Link could teach Black Widow some of his swordsmanship, and she could teach him some stealth and espionage techniques.
Another interesting pairing could be Ganon and Salem. Both are powerful villains in their respective universes. They could form an alliance in the crossover fanfiction. Ganon's brute strength and dark magic combined with Salem's cunning and ability to manipulate would create a truly terrifying force. And the heroes from both worlds would have to work together to stop them.
Alphys and Iron Man. Alphys is a scientist in Undertale who is a bit of a klutz but also brilliant. Iron Man is a genius inventor in Marvel. They could collaborate on some crazy technological inventions. Alphys could learn a lot from Iron Man about presenting herself more confidently, and Iron Man could be intrigued by Alphys' unique approach to science that comes from the Undertale world.
Another great pairing would be Sasuke and Wolverine. They both have a dark and brooding side. Wolverine's regenerative abilities and his adamantium claws could be compared to Sasuke's Sharingan and his various ninja weapons. They might start off as rivals, but eventually come to respect each other's skills in combat. Also, they could both share stories about their past traumas and how they overcame them to become the strong fighters they are today.
Supergirl and Iron Man would be an interesting pairing. Tony Stark could be fascinated by her Kryptonian technology and try to study it. Meanwhile, Supergirl would be intrigued by Stark's genius and his suits. They could have some really fun banter while saving the world from a new threat like Ultron who has incorporated some Kryptonian elements into his design.
The Arbiter and Thor. Thor is a powerful Asgardian with his hammer and lightning powers, while the Arbiter is a skilled warrior from the Halo universe. They could fight side by side against a common enemy. Their different cultures and fighting styles would make for an exciting combination. Maybe Thor could teach the Arbiter about magic, and the Arbiter could show Thor some unique Covenant combat techniques.
Batman and Iron Man would be a fascinating pairing. Both are brilliant inventors and strategists. They could compare their high - tech gadgets and suit designs. Batman's detective skills paired with Iron Man's scientific knowledge could make them a formidable duo in solving the mystery of some cross - universe threat. They might also argue about who has the better tech, which would be quite entertaining.
Wanda Maximoff and Juvia would be a fascinating pairing. Wanda's powerful magic and Juvia's water - based magic could create some really unique and powerful combinations. Also, their different personalities - Wanda's more brooding and Juvia's more love - struck - would make for some interesting interactions.
I think Thor and Chewbacca would be a really fun pairing. Thor with his god - like powers and hammer, and Chewbacca with his brute strength and loyalty. They could have some really comical moments together, like Thor trying to understand Chewbacca's growls and Chewbacca being in awe of Thor's lightning.
I think Harry Potter and Spider - Man would be an interesting pairing. They are both young heroes with a strong sense of justice. Harry could teach Peter Parker about magic, and Peter could show Harry how to use his web - slinging skills in a more creative way in the wizarding world.
Definitely Superman and Captain America. They both represent the ideals of their respective universes. Superman with his superhuman strength and unwavering moral compass, and Captain America with his leadership and never - give - up attitude. Another interesting pairing would be Batman and Iron Man. They're both brilliant inventors and strategists, and seeing them compete or collaborate on a project would be fascinating.