A plot could revolve around Hiccup's journey to Elsa's kingdom because Toothless, his dragon, has an injury that only Elsa's ice magic can heal. While there, Hiccup teaches Elsa about the ways of dragons and how to befriend them. In return, Elsa helps Hiccup understand more about the magic within himself that he didn't know he had, which is related to an ancient connection between his Viking ancestors and a long - lost ice - using tribe.
One idea could be that Hiccup and Elsa accidentally meet in a magical realm between their two worlds. They discover that their powers of ice (Elsa) and dragon - taming (Hiccup) are somehow related to an ancient prophecy that involves saving both of their kingdoms from a common threat, like a powerful fire - breathing monster that is immune to normal attacks but can be weakened by the combination of ice and the special bond Hiccup has with his dragon.
Well, perhaps there could be a fanfiction where Hiccup and Elsa are both summoned by a powerful wizard to help with a prophecy. They don't trust each other at first, but as they face the challenges set by the wizard, which include tasks that require both fire (from Hiccup's dragon) and ice (Elsa's power), they start to respect and care for each other.
Hiccup is adventurous and curious. He would be intrigued by Elsa's ice powers and her reserved nature. Elsa, on the other hand, is cautious and has been through a lot with her powers. Hiccup's boldness might initially make her a bit uncomfortable, but his kindness would draw her in.
A plot could involve Elsa's ice powers acting up during her pregnancy. Hiccup, being from a more technological and dragon - friendly world, tries to find ways to help her control it. They might seek the help of Toothless and other magical creatures in their world. Maybe they face opposition from some of their people who are not happy about their union, especially with a baby on the way. But they stand strong together and prove that love can bridge any gap.
Well, a possible plot for 'fire and ice twilight fanfiction' could be centered around a love triangle that involves a Twilight character, like Bella, and two characters from the 'fire and ice' universe. Maybe she gets caught in the middle of a power struggle between a noble from a powerful 'fire and ice' family and a mysterious figure who has some sort of magic related to ice. This could lead to all sorts of drama, with Bella having to navigate the different cultures and rules of both worlds while also dealing with her own feelings for these two very different individuals.
One interesting plot idea could be exploring what would happen if a minor character, like Gendry, became a key player in the fight against the White Walkers. He has the skills and the unknown parentage which could be a great source for new storylines.
One idea could be to explore a different path for a minor character. For example, what if a servant in King's Landing had a secret ability to communicate with animals and used it to gather intelligence. Another could be a story where the magic in the world of Ice and Fire has a different origin than what is known in the original series. Maybe it was brought by an ancient alien race that visited Westeros long ago.
One idea could be a dragon with fire powers being forced to team up with a dragon with ice powers to stop a common enemy in the Naruto universe. Maybe an ancient evil that can only be defeated by the combined forces of fire and ice. Another plot could involve a ninja who has a special connection to these dragons and has to learn to control their powers to protect their village.
A cool 'Fire and Ice Pokemon fanfiction' could involve a trainer who has a special bond with both a Fire - type and an Ice - type Pokemon. The trainer enters a tournament where they face opponents with Pokemon that have a type advantage over either the fire or ice one. But through clever strategies and the unique synergy between the two Pokemon, they manage to win. For example, using the ice Pokemon's defensive moves to protect the fire Pokemon while it charges up a powerful attack.
One idea could be that the Lego Naruto characters discover a hidden land where fire - breathing and ice - breathing dragons live. They have to form alliances with these dragons to stop an evil force that is trying to take over both the Naruto world and the dragon's land.
A great plot could be about Natsu and the ice dragon slayer (let's say a new character) teaming up to defeat a powerful dark wizard. They have to overcome their differences in magic types and personalities at first. Maybe the ice dragon slayer has a cold and reserved nature compared to Natsu's hot - headedness. As they fight together, they learn from each other and create new combined attacks. For example, Natsu could use his fire to heat up the air around the ice dragon slayer's ice attacks, making them more powerful and unpredictable.