Pairing a tech - savvy character from 'devil survivor 2' with a magic - using character from another world could be really interesting. The tech character could be fascinated by the magic, and the magic user could be intrigued by the advanced technology in the 'devil survivor 2' world. They could combine their skills in unexpected ways to face challenges, like using technology to enhance the magic or using magic to power up technological devices.
Taylor Hebert from 'worm' and Sam Winchester from 'Supernatural' would be a great pairing. Taylor's strategic mind combined with Sam's knowledge of the supernatural could lead to some really interesting interactions and adventures.
Amu could be paired with Naruto from Naruto. Amu's shy yet strong - willed nature combined with Naruto's determination would make for an interesting dynamic. They could learn from each other's ways of facing challenges, with Amu teaching Naruto about the importance of inner self - discovery and Naruto showing Amu how to be more bold in the face of danger.
Ruby and Joker could be a great pairing. Ruby's enthusiasm and determination combined with Joker's cool - headed leadership skills would make for an interesting dynamic. They could learn from each other's combat styles and ways of thinking.
Xander and Duncan MacLeod could be a great pairing. Duncan has centuries of experience as a Highlander, and Xander has his own unique experiences dealing with vampires and demons. They could learn a lot from each other.
I think Naruto and Dante would be an interesting pairing. Naruto's positive and determined attitude would contrast with Dante's more laid - back but still badass demeanor. They could learn a lot from each other in combat. Another interesting pairing could be Sasuke and Vergil. Both are brooding characters with a thirst for power, and their meeting could lead to some intense power struggles or even a begrudging mutual respect.
One idea could be to have characters from different universes within the 'devil survivor 2' world meet and form unexpected alliances. For example, a group of normally opposing demon summoners having to work together to face a greater threat that endangers all of their worlds.
Lavi and Edward Elric. Lavi is always curious and loves to explore different things, which is similar to Edward's thirst for knowledge. They could bond over their shared love of books (since Lavi is a Bookman) and also their quests for the truth. Edward could help Lavi understand more about alchemy, while Lavi could introduce Edward to the world of Innocence and exorcism.
Koneko and a god of nature could form a unique pairing. Koneko's connection to her cat - like instincts might be related to the god of nature's domain. The god could help Koneko further explore and enhance her powers, while Koneko could show the god a different perspective on the world of the supernatural that exists in the High School DxD universe.
Uno and a flamboyant character from a magical anime. Uno's charm and confidence could either clash or blend really well with the over - the - top personality of the magical character. They could exchange fashion tips or compete in a popularity contest within the crossover world.
Master Chief and Ruby could be an interesting pairing. Master Chief's stoic and experienced nature could contrast with Ruby's more youthful and enthusiastic personality. They could learn a lot from each other in combat situations.