The last dragon could inspire a religious or cultural shift in Westeros. People might start to worship it as a symbol of power and divinity. This could change the social fabric of the kingdoms. And depending on who controls the dragon, they could use this new - found religious fervor to their advantage. For example, they could claim that their rule is blessed by the dragon and thus gain more support from the people. At the same time, there could be those who oppose the dragon - centered religion, leading to internal strife within the kingdoms.
The last dragon could simply by its presence change the balance of power. If it allied with a particular house, that house would become extremely powerful. For instance, if it joined the Starks, they could use it to defend the North against any invaders, including the White Walkers if they were still a threat.
If a Stark hatched a dragon egg in this fanfic, it would completely shift the power dynamics. The Starks, known for their honor and strong sense of family, would suddenly have a weapon of mass destruction at their disposal. Dragons are extremely powerful and could give the Starks an edge over their enemies. They could use the dragon to defend their territory more effectively, like The Wall. It might also make other houses more cautious about opposing the Starks, as they would fear the dragon's wrath.
If Arya gets pregnant in a fanfic set in Westeros, it would be quite a shock. However, it could fit in if it was part of some grander scheme. Maybe she was used as a pawn by an enemy, and the pregnancy was a way to control her or her family. Or perhaps it was a result of a brief moment of weakness during her travels, and now she has to deal with the consequences in a world that isn't very forgiving towards women in such situations.
Well, if Frederick the Great were in the Game of Thrones fanfic world, he'd probably be a bit of an outsider at first. But his reputation for being a great leader would spread quickly. He might start by building up his own small force and territory. Given his intelligence, he'd soon figure out the complex politics of Westeros. He could use his diplomatic skills to avoid unnecessary bloodshed, but if pushed, he'd be a formidable opponent in battle.
In a fanfiction scenario, Hulk could be a creation of the Children of the Forest. Long ago, they used their magic to create a being of great strength to protect them from the First Men. But as time passed, he was forgotten and buried. Then, with all the magic resurfacing in Westeros during the events of the series, Hulk is awakened. His presence would completely disrupt the power balance, as he doesn't care about the Iron Throne or the politics of the land, but just reacts to threats and challenges in his own brute - force way.
Well, Naruto's godlike abilities would completely disrupt the power dynamics. His shadow clone jutsu alone could overwhelm any army. He could use his Rasengan to break through castle walls with ease. And his ability to sense danger would make him almost impossible to assassinate, which is a common tactic in Westeros. This would make him a major force that no one could ignore.
Well, if we consider modern tech in Westeros in a fanfic, guns would completely change the way battles are fought. Armies that get hold of gunpowder technology first would have a huge advantage. For example, the Lannisters with their wealth could potentially mass - produce guns and gain even more power. Also, communication technology like radios would make it easier for lords to control their lands and respond to threats quickly.
It could be about the last dragon in Westeros rising to power. Maybe it forms a bond with a new character who tries to use its strength to claim the Iron Throne. This person might face many challenges from the remaining great houses who don't want a dragon - backed ruler.
A fanfic about Arya finding a dragon egg could start with her stumbling upon it during one of her adventures. For example, she might find it in an old, forgotten castle. Then, the story could focus on her attempts to keep it safe. She could hide it in her belongings and try to find someone who might know about dragon eggs. The story could also show her internal struggle, as she has to balance her new discovery with her existing goals like revenge.
If Jon Snow rides a dragon in fanfic, it would be a game - changer for power dynamics. Dragons are extremely powerful weapons in the Game of Thrones world. Jon, being a noble and a good fighter, would be able to use the dragon to his advantage. He could easily overpower his opponents. This would make him a key player not just in the fight against the White Walkers but also in the political struggle for the Iron Throne. It might even lead to him uniting the kingdoms more easily as people would be in awe of his dragon - riding ability.
Well, it would change a great deal. Arya is a skilled assassin. With a dragon, she would have a powerful weapon at her disposal. She could use the dragon to quickly travel across Westeros and surprise her enemies. Her revenge list might get shorter very fast as she could just burn down the castles of those who wronged her family. For example, she could easily take on the Boltons at Winterfell if she had a dragon by her side.