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.
A crossover could involve a plot where the Avatar is needed in the Thundercats' world. There's a dark force emerging that the Thundercats can't handle alone. The Avatar, with his bending skills, could bring a new element of power. Tygra might be intrigued by the bending techniques and try to incorporate some aspects into his own combat style. Cheetara could use her speed to help the Avatar move around the Thundercats' territory quickly.
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.
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.
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.
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.
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.
The crossover could start with a strange portal opening between the two worlds. Naruto characters like Sasuke might be intrigued by the bending abilities in the Avatar world. He could try to learn firebending, thinking it could enhance his own fire - based jutsu. And the Avatar characters could be equally fascinated by ninjutsu.
One possible fanfiction could be about Naruto characters finding themselves in the Avatar world. For example, Naruto's determination and never - give - up attitude could be a great addition to the Avatar universe. He might learn bending techniques in a unique way, perhaps by combining his chakra control with the flow of chi in the Avatar world. This could lead to some really interesting battles and character interactions.
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.