A common theme is the exploration of different types of magic. Since both worlds have their own magical elements, fanfictions often delve into how these magics interact. For example, how Jack Frost's power over ice compares to Elsa's.
Another theme is friendship and teamwork. The characters from rotg and Frozen usually come together to face a common enemy. This shows how different personalities from the two universes can collaborate. For example, Tooth from rotg might work with Kristoff in a story to achieve a goal.
There are often fanfictions where the Guardians from rotg come to protect Arendelle from some new threat. For example, Pitch Black could be plotting to take over Arendelle, and the Guardians team up with the Frozen characters to stop him. You can find these on various fanfiction websites like Archive of Our Own (AO3).
One common theme is friendship. The characters from Frozen and Brave, like Elsa and Merida, coming together and learning from each other's strengths. They support each other through various challenges.
Another theme is the exploration of different types of magic. Elsa's ice magic and Rapunzel's healing hair magic are very different. In many fanfictions, they try to understand each other's magic and even find ways to combine them to overcome challenges. It's about the discovery of new powers and how they can be used for good. Also, the theme of family is present. Elsa and Anna's relationship as sisters can be compared and contrasted with Rapunzel's relationship with her adoptive parents. How different family dynamics interact when the two sets of characters meet is an interesting aspect in these crossovers.
A common theme is the clash and then the combination of different powers. Naruto's ninja powers like Rasengan and Elsa's ice - making abilities are often pitted against each other at first and then combined to defeat a greater evil.
There's a fanfiction that focuses on Jack Frost's encounter with Elsa in the Frozen world. It delves deep into their similar yet different powers. The story is really engaging as it shows how they could learn from each other and how their powers could either clash or complement. It's on a smaller fanfiction forum but has gained quite a following among fans who are into this crossover. Also, there are some that are more comical, like the one where the Tooth Fairy tries to collect teeth from the Frozen characters in a very humorous way.
A common theme is the exploration of new powers. When Elsa crosses over into another universe, her ice powers often interact in new and unexpected ways with the elements or magic of that world.
Well, Tumblr can be a good place to find Rotg watch Frozen fanfiction too. There are many fan - run blogs dedicated to different fandoms. Some of them might share or create fanfictions related to this crossover. You can try searching relevant tags like #Rotg #Frozen #fanfiction. However, the content on Tumblr can be a bit more scattered compared to dedicated fanfiction sites, so it might take some time to find exactly what you're looking for.
One popular rotg crossover fanfiction might be the one where the characters from ROTG cross over into a modern-day city setting. It adds an interesting twist as they interact with the normal humans and face new challenges.
One of the most prevalent themes is the power of belief. In the 'rotg' universe, belief is important, and this can be incorporated into the relationship between Jack Frost and the oc. The oc might start to believe in Jack Frost more and more, and this belief could strengthen their bond. Another theme is sacrifice. There could be situations where either Jack or the oc has to sacrifice something for the other or for a greater good, which adds depth to the story.
Power is also a common theme. The vampire might have certain powers like super strength or mind control, and in the 'Frozen' setting, these powers can either be a great advantage or a hindrance. For example, if they use their powers in front of the wrong people, they could be in danger. There is also often a theme of redemption. The vampire may start out as a bit of an anti - hero but through their experiences in the 'Frozen' world, they start to change for the better.