Iron Man and Ethan Hunt would be an amazing pairing. Iron Man with his high - tech suit and Hunt with his resourcefulness. They could share their knowledge of gadgets and come up with some really cool strategies to defeat the enemy. Another great pairing could be Black Widow and Ilsa Faust. Both are strong female characters with great combat skills and espionage experience. They could work together undercover and take down the bad guys from the inside.
Captain America and William Brandt could make a great pair. Captain America's leadership and sense of justice combined with Brandt's intelligence and diplomatic skills would be useful in dealing with both the physical and political aspects of the threat in a crossover story. Also, Hulk and Solomon Lane could have an intense face - off. Although Lane is a human villain, his cunning and ability to manipulate situations could put him in a position where he has to face the Hulk's raw power.
They'd probably be intrigued at first. The Avengers are used to big - scale battles, but Mission Impossible - style missions with their focus on stealth and intricate planning would be a new concept. Thor might find it a bit strange as he's more into direct combat, but Iron Man would be interested in the high - tech gadgets used. Captain America would respect the discipline and planning involved.
Another good pairing could be Jacob and Thor. Jacob's shape - shifting ability and his connection to nature could be something that Thor respects. They could bond over their physical strength and their loyalty to their respective groups. And Thor could introduce Jacob to the world of Asgardian magic and technology.
Another good pairing could be Spartan Locke and Black Widow. Locke is a skilled and stealthy Spartan, and Black Widow is a master spy. They could work together on covert missions, sharing their skills in combat and infiltration. For example, Locke could provide the muscle and high - tech support while Black Widow uses her espionage skills to gather intelligence.
One possible plot could be that Ethan Hunt's IMF team discovers a global threat that is related to some alien technology left over from an Avengers battle. They then seek the help of the Avengers. The Avengers, on the other hand, are dealing with political issues regarding their superhero status and see this as a chance to prove their worth again. Together, they combine their skills, like Iron Man's tech with Hunt's spy gadgets, to take on the new threat.
A rather unexpected but potentially great pairing could be Ashley Williams and Vala Mal Doran. Ashley is a tough and no - nonsense soldier in Mass Effect, and Vala is a wily and resourceful adventurer in Stargate. They could get into all sorts of scrapes together and use their different skills to get out of them. On the other hand, Kaidan Alenko and Jonas Quinn could be paired. Kaidan has biotic powers in Mass Effect, and Jonas has his own unique abilities in Stargate. They could explore how their powers might interact or complement each other in different situations.
Happy from Fairy Tail and Jigglypuff would be an interesting pairing. Happy loves fish and Jigglypuff loves to sing. They could have a comical relationship where Jigglypuff's singing puts everyone to sleep except Happy, who just enjoys the performance. And in times of trouble, Happy could fly Jigglypuff around to safety or to strategic positions in a fight.
One great pairing could be Celty and Uta. Celty is a headless rider with a lot of mystery around her, and Uta is a ghoul with a deep love for art and his own brand of mystery. They could share their knowledge of the underground and the strange things they've seen. Another interesting pair would be Shizuo and Ayato. Shizuo's strength and short - temper against Ayato's rebellious and somewhat violent ghoul nature would lead to some intense confrontations. And finally, Izaya and Nishiki could be paired. Izaya loves to play with people's minds, and Nishiki has his own complex relationship with his ghoul identity and his past actions. Izaya could really mess with Nishiki's head in the crossover.
A great pairing would be Cisco Ramon from Arrowverse and Willy Wonka. Cisco is a tech - genius, and he could help Wonka upgrade his factory's technology. They could create some really cool, high - tech candies together. Also, Supergirl and the Candy Man from Willy Wonka's world could be an unexpected but cool pairing. Supergirl's strength and kindness could be used to help the Candy Man, who might be in some trouble, and in return, the Candy Man could offer her some of his amazing candies.
I think Iron Man and C - 3PO would make a great pairing. Iron Man could upgrade C - 3PO's systems, and C - 3PO could provide Iron Man with valuable information about different cultures and languages in the Star Wars universe. They're both tech - savvy characters, and their interactions would be full of witty banter.
Naruto and Kyo Kusanagi would be a great pairing. Naruto's energetic and determined nature combined with Kyo's powerful fire abilities could create some amazing battle scenes. Also, Sasuke and Iori Yagami could be an interesting pair. They both have a dark side and a thirst for power. Their interactions would be full of tension and power struggles. Another good pairing could be Sakura and Athena Asamiya. Athena's psychic powers and Sakura's medical ninjutsu could lead to some unique team - up strategies.