Another concept is a fusion of the two worlds' technologies and powers. The Voltron lions could be enhanced with bending abilities. So, the Black Lion could have the power of earthbending, allowing it to create barriers or attack with rocks while in combat. This would create a whole new dynamic for both the Voltron and Avatar universes.
One idea could be to have the Voltron pilots end up in the Avatar world. They could learn bending techniques and use their Voltron skills in combination with them. For example, Keith's swordsmanship might blend well with waterbending moves in a fight.
In a battle situation, the interactions would be really exciting. The Voltron team is used to working together in their lions, but in the Avatar world, they would have to adapt to fighting alongside benders. Lance might team up with a firebender and use his sharpshooting skills along with the firebender's attacks. The Avatar could also be in the middle, using their all - four - element powers to support both the benders and the Voltron pilots.
One idea could be a crossover between Avatar: The Last Airbender and Harry Potter. Imagine Aang and his friends attending Hogwarts and learning magic alongside wizardry students. They could use their bending skills in magical duels.
Well, in a Voltron and Power Rangers crossover fanfiction, the characters could have some really cool interactions. The Voltron team might be impressed by the Rangers' martial arts skills and the Rangers could be in awe of Voltron's giant robot. A possible plot could be that there's a power source that both teams need to protect. They start off as rivals thinking the other is trying to steal it, but then realize they have a common foe. Also, the Rangers could teach the Voltron pilots some new combat moves, and the Voltron pilots could show the Rangers how to better coordinate their mecha.
One idea could be that the Avatar characters gain the ability to use magic when they enter the Harry Potter world. For example, Aang could use his airbending skills along with magic spells to fight against the Death Eaters. Another could be that Hogwarts students are sent to the Avatar world for a special exchange program, and they have to learn to bend elements instead of casting spells.
One idea could be a crossover with another fantasy world where Korra has to learn new bending techniques from that world's magic users. This would bring a fresh dynamic as she struggles to adapt to different power systems.
Maybe the Avatar, in his journey to master all the elements, travels to the Naruto world. He could learn some ninja techniques and incorporate them into his fighting style. The Avatar could also teach the ninja about the power of bending, which could lead to some really unique team - up strategies among the characters.
A cool plot could involve a crossover with a post - apocalyptic world. The Voltron team arrives and has to help the survivors there while also dealing with their own issues. They could share their technology to help rebuild the world, and in return, learn some survival skills from the locals.
A really interesting plot could be that a powerful Gem weapon is stolen and ends up in the Voltron universe. The Paladins find it and don't understand its power at first. Meanwhile, the Crystal Gems think the Paladins are the ones who stole it on purpose. So there's this initial conflict. But as they start to communicate, they realize there's a bigger threat behind the theft. A shadowy figure is trying to use the weapon to destroy both universes. So they must join forces to stop this threat. The story could explore how the different characters interact and grow to trust each other.
One idea could be that Gaara, with his sand - controlling abilities, arrives in the Avatar world during a time of great turmoil. He could team up with Aang and use his sand to help in battles against the Fire Nation. Maybe his sand could also be used in creative ways to counter the bending of the various elements in the Avatar universe.
One idea could be that Ben Tennyson's Omnitrix malfunctions while he's in the Avatar world. So, instead of transforming into his usual aliens, he starts taking on the forms of Avatar creatures. For example, he might turn into a flying bison or a waterbender - like spirit. This would create all kinds of chaos and new adventures as he tries to figure out how to control these new forms and also deal with the political and elemental challenges of the Avatar world.