In a Bleach x Game of Thrones fanfiction, the power hierarchy would be a complex mix. The magic in Game of Thrones, like the magic of the Red Priests, would have to be compared to the spiritual powers in Bleach. The dragons in Game of Thrones are a huge source of power, but in the context of Bleach, they might be seen as powerful spirits. So, the power hierarchy would depend on how these different power sources interact. If the Soul Reapers decided to ally with certain houses in Westeros, those houses would gain a significant advantage in the power struggle.
A professional army in a Game of Thrones fanfiction would change power dynamics in many ways. Firstly, their presence might make certain regions more stable if they are under the control of a just leader. However, it could also create more tension. Other kingdoms or factions might see this as a threat and start to build up their own forces or form coalitions against the one with the professional army. It could also influence the politics at court, as diplomats would have to consider this new military strength when making deals or treaties.
Daenerys in Winterfell would disrupt the existing power dynamics in multiple ways. For one, her very presence as a Targaryen with a claim to the throne challenges the Stark's authority in the North. Her dragons are a huge factor; they could be used to intimidate or be seen as a great asset. This might lead to some characters trying to manipulate her for their own gain. For example, Littlefinger (if he were still alive) might try to play both sides, using Daenerys against the Starks or vice versa. Also, the common people in Winterfell would be divided in their opinions of her, some seeing her as a savior and others as a foreign invader.
Harry's magic would be a game - changer. His ability to apparate could make travel and espionage much easier. For example, he could easily get into the Red Keep undetected. This would give him an edge over the regular characters in GoT who rely on horses and ships.
If Sasuke were in a Game of Thrones fanfiction, the storyline could change in many ways. Sasuke's ninja skills would give him an edge in the battles. He could potentially change the power dynamics, especially in the face of the White Walkers. His goal - seeking revenge or power - might align him with different houses. For example, he might see the Lannisters as a means to an end if they could offer him a path to his own goals, or he could oppose them if they stood in his way. His presence would also introduce a new element of honor and loyalty, as his own code of conduct would clash or merge with the often - complicated politics of Westeros.
Well, Hermione in a Game of Thrones fanfic would probably try to reform the education system in Westeros. Since she values knowledge so much, she'd be appalled at the lack of proper schooling. This could lead to her getting involved with the maesters, trying to introduce new ideas and magic into their studies. And in terms of the battles, she could use her strategic mind to outwit opponents. Maybe she'd come up with new battle formations inspired by the spells she knows, making her a valuable ally to any lord or lady who would listen to her.
The Sith, if introduced into the Game of Thrones universe in fanfiction, would likely change the story in a very drastic way. They are powerful force - users with a penchant for power and control. They could easily manipulate the power - hungry characters in Westeros. For example, they might side with Cersei, teaching her dark magic to strengthen her hold on the Iron Throne. This would make her an even more formidable adversary and would change the power dynamics between the different houses.
The Dovahkiin in Game of Thrones fanfiction would bring a whole new element of magic. GOT has some magic, but the Dovahkiin's magic is more direct and powerful. Their ability to understand and communicate with dragons would make the dragons in GOT seem more intelligent and less like just wild beasts. This could lead to new alliances. For instance, Daenerys might be both intrigued and threatened by the Dovahkiin. She might try to either make an ally of them or eliminate them as a rival. And the Dovahkiin would probably have no interest in the Iron Throne itself, but more in the challenges and foes that GOT presents, like the White Walkers. They would see the White Walkers as a worthy enemy to test their skills against.
One interesting crossover could be the characters from Bleach having to navigate the political intrigue of Westeros in Game of Thrones. For example, Ichigo could be seen as a sort of 'outsider' knight, using his sword skills to protect the innocent in a land full of backstabbing nobles. His spiritual powers might be mistaken for some sort of dark magic at first.
The power systems could interact in really interesting ways. For example, Percy's ability to control water could potentially enhance the water - based attacks in Bleach, like Isane Kotetsu's healing abilities which have a water element. Or Ichigo's Hollow powers, which are somewhat chaotic, could be tamed by Percy's connection to the more orderly side of water. Also, the Quincy's ability to manipulate spirit particles might be affected by the presence of the Greek magic from Percy's world. Maybe it could make their attacks stronger or more unpredictable.
Well, if there was an industrial revolution in the Game of Thrones fanfiction, it would completely change the power dynamics. For example, the use of advanced weaponry like muskets could make traditional knights less dominant in battles. The production of goods might shift from small-scale crafts to large factories, changing the economy. And the social structure could be upended as new classes of industrial workers emerge.