A really interesting concept is that Thanos comes to Westeros to collect something he believes is as powerful as the Infinity Stones. Maybe he thinks that the Iron Throne has some sort of hidden power, or that the knowledge of the maesters is a valuable resource that he can use to gain more power across the multiverse.
Another concept is Thanos being a dragon rider. He could bond with one of Daenerys' dragons and use it to his advantage. He might use the dragon's power to conquer kingdoms and also use his own powers and the Infinity Stones to enhance the dragon's abilities, creating a truly unstoppable force in the Game of Thrones world.
A unique idea could be Smaug being tamed by Bran using his warging abilities. Bran, with his connection to animals and his growing powers, might be able to reach out to Smaug's mind and form a bond. This would completely change the role Smaug plays in the 'Game of Thrones' universe.
The use of magic and supernatural elements. In Game of Thrones, we have things like the White Walkers and dragon magic. In Mortal Kombat, there are things like the Elder Gods and their magic. Fanfiction can explore how the magic from both universes could interact. Maybe the dragons in Game of Thrones could be used in Mortal Kombat - style battles, or the Elder Gods could have some influence on the events in Westeros. It opens up a whole new realm of possibilities for the story.
One interesting concept is alternate endings. For example, some fanfictions might have Jon Snow actually ruling Westeros in a more peaceful way than in the original series. Another concept could be character crossovers, like if a character from another fantasy world entered the Game of Thrones universe. It adds a whole new layer of intrigue.
One unique element is the clash of different power systems. In 'Game of Thrones', power is often about land, armies, and political influence. Loki, on the other hand, has his own brand of magic and trickery. When combined in fanfics, it creates a really interesting dynamic. For example, in some fanfics, Loki uses his illusions to deceive the powerful families in Westeros.
Some fanfictions play with the concept of reincarnation and magic. A character might be reincarnated with some sort of magical ability they didn't have before. This could be related to the old gods or the new. For instance, a character reincarnated with the ability to communicate with the weirwoods in a more powerful way than before. This could give them an edge in the game of thrones, as they could gain knowledge and wisdom from the ancient trees that others can't access.
Well, the idea of a Gravewalker in Game of Thrones fanfiction can bring in the concept of a different form of magic. It's not like the regular fire - based or blood - based magic we see in the show. This new form of magic related to the dead could potentially have a connection to the White Walkers in some fanfictions. Maybe the Gravewalker has the ability to control or at least influence the White Walkers in a way. It could also be that the Gravewalker is a key to unlocking some ancient secrets about the First Men and their relationship with death and the afterlife.
Well, in this kind of fanfiction, the reincarnation aspect might bring about the concept of characters getting a second chance at redemption. Take Jaime Lannister, for instance. If he were reincarnated, he could strive to correct his past wrongs. Also, it's interesting to think about how the reincarnation of magical beings like the Children of the Forest could impact the balance of power in the Seven Kingdoms. They could bring back long - lost magic and knowledge that had been forgotten over time.
One interesting concept could be the interaction between the dark and complex world of 'Game of Thrones' and the idea of angels. Maybe an angel character is introduced into the power - hungry and often cruel world of Westeros. For example, an angel might try to influence the actions of key characters like Daenerys or Jon Snow, either to bring about peace or to further their own mysterious agenda.
One interesting concept could be the creation of new magical devices. For example, an inventor in the fanfiction might create a special compass that not only points north but also towards a person's true destiny within the complex world of Westeros. It could add a whole new layer of adventure as characters follow this new tool's guidance.
One interesting concept could be a crossover with another fantasy world like Middle - earth. Imagine characters from Game of Thrones meeting hobbits or elves. Another concept might be a crossover with a historical setting, such as the Roman Empire. It would be fascinating to see how the power struggles in Westeros compare to those in ancient Rome. Also, a crossover with a superhero universe could be really cool, like if Daenerys had superpowers or Jon Snow could fly like Superman.