A possible conflict could be a misunderstanding between the two groups. The Thundercats' brash and direct approach might be misinterpreted by the more diplomatic Avatar world. For example, when Lion - O first meets the Earth Kingdom leaders, his eagerness to solve problems with force could cause tension. This could lead to a series of events where both sides have to learn about each other's cultures to avoid all - out war.
The conflict could center around a new power source or magical artifact. Say there's an ancient crystal that has the power to both enhance the Sword of Omens and give the Avatar new bending abilities. Both sides want to use it for their own reasons. The Thundercats need it to defend their home world from an approaching threat, and the Avatar wants to keep it out of the wrong hands in his world. This could lead to a battle of wits and strength between the two groups.
One idea could be to have the Thundercats arrive in the Avatar world. Maybe they land near a Water Tribe. The Thundercats' advanced technology and unique abilities would be a shock to the Avatar world. Lion - O could form an alliance with Aang. They could learn from each other's leadership styles. The Thundercats could help in the fight against the Fire Nation with their strength and weaponry.
One possible plot could be that the Thundercats are transported to the Naruto universe. They might be mistaken for powerful ninjas at first. Lion - O could end up learning some ninja techniques and share his sword - fighting skills with the ninjas. Cheetara could use her speed in the same way as some of the fast - moving ninjas in Naruto. And they could all team up to fight a common enemy, like a powerful rogue ninja who has some dark magic similar to the villains in the Thundercats' world.
One possible plot could be that Naruto and his friends are somehow transported to the Thundercats' world. Naruto, with his ninja skills, could team up with Lion - O to fight against a common enemy like Mumm - Ra. Naruto's Rasengan could be a powerful weapon against the dark magic in the Thundercats' realm.
Power - up themes are quite popular. In these fanfictions, the Thundercats might gain new powers or abilities during a crossover. It could be due to some magical item from the other franchise or a new form of training. This makes the Thundercats even more powerful and gives the story a new direction.
One possible plot could be that Naruto and his friends are somehow transported to the Thundercats' world. Naruto, with his never - give - up attitude, teams up with Lion - O to fight a common enemy, like Mumm - Ra who has formed an alliance with some rogue ninjas from Naruto's world. They could combine their powers, Naruto's chakra - based jutsus and Lion - O's Sword of Omens powers, to defeat the bad guys and save both their worlds.
A Thundercats and Star Wars crossover fanfiction would be really cool. The Thundercats could be in the Star Wars universe, and their unique powers and weapons could be a great addition. Maybe the Thundercats could help the Jedi or the Rebels in their fight against the Sith or the Empire. For instance, Cheetara's speed could be useful in battles, and Tygra's illusions could be used to deceive the enemy.
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.
One possible plot could be that Naruto, with his newfound immortality, somehow gets transported to the Avatar world. He could meet Aang and learn about bending. Naruto's chakra control might help him quickly adapt to bending techniques. He could then team up with Aang to fight against a common enemy, like an ancient dark spirit that threatens both worlds.
Archive of Our Own (AO3) is also a great place to find Thundercats crossover fanfiction. It has a well - organized tagging system, so you can easily filter for the specific crossovers you're interested in. There are often high - quality and unique takes on Thundercats crossovers there.
In many 'thundercats crossover fanfic', the new storylines that emerge are really cool. When they cross over with something like the Guardians of the Galaxy, the Thundercats' sense of honor and the Guardians' more laid - back attitude create a contrast that leads to interesting adventures. Also, the way the fanfic writers combine the powers and abilities of both sets of characters is exciting.