In a fanfiction scenario where Jon Snow is a Faceless Man, he might struggle with the moral implications of the Faceless Men's assassinations. He was raised with a strong sense of honor, and this new identity would constantly test his values. For example, he may be ordered to kill someone he believes is innocent, and he'd have to decide whether to follow the Faceless Men's ways or his own conscience.
One possibility is that Jon Snow uses his new Faceless Man skills to infiltrate the Boltons' camp undetected. He could change his face to look like one of their soldiers and gather crucial intelligence for the Starks.
Perhaps Jon Snow, as a Faceless Man, travels back to King's Landing in disguise. He could then start to manipulate the political situation from the shadows. He might use his knowledge of different faces and voices to spread rumors and misinformation among the Lannisters, creating chaos and weakening their hold on the Iron Throne.
One great fanfiction could be 'Jon Snow's New Path'. In this story, Jon Snow discovers his connection to the Faceless Men in a very unexpected way. It delves deep into his struggle with his new identity and the powers that come with it. The author does a wonderful job of blending the mystery of the Faceless Men with Jon Snow's own character arc from the original series.
The combination of Jon Snow's character and the mystery of the Faceless Men. Jon Snow is a complex and beloved character from the original series. When paired with the enigma of the Faceless Men, it creates a lot of potential for interesting stories. His moral code and their amoral nature can lead to great internal and external conflicts.
As a Faceless Man, Jon Snow could have a different role in the fight against the White Walkers. Instead of leading an army openly, he could use his shape - shifting abilities to spy on the enemy. He could blend in with the White Walkers' ranks and find out their weaknesses, which would be a huge advantage for the living.
There are many ways fanfiction writers could incorporate Jon Snow and the Dark Sister. For example, the Dark Sister could be tied to Jon Snow's true heritage. Maybe it was hidden away waiting for him to claim it as a Targaryen. This could lead to new storylines where he uses the sword to fight against the White Walkers or in the battle for the Iron Throne.
A great deal of Jon Snow and Iron Throne fanfictions focus on his relationships. For example, his relationship with Daenerys could be very different in fanfictions. In some, they rule together on the Iron Throne, combining their claims and powers. In others, they are at odds, with their relationship being a major obstacle in Jon's path to the throne. And of course, there are fanfictions where his Stark family ties also influence his actions regarding the Iron Throne, as loyalty to his family is a strong part of his character.
One possibility could be that in the fanfiction, Jon Snow discovers the Valyrian steel in an ancient castle's armory. Maybe it was hidden away for centuries, and his discovery sets off a chain of events that changes the course of his journey.
He could be recruited by the Faceless Men. Maybe they saw potential in him, perhaps his skills or his thirst for a new identity led them to approach him and offer him the chance to become one of them.
One possible plotline could be Tjon Snow using his new Faceless Man skills to infiltrate enemy strongholds. He might change his appearance to gather intelligence and undermine his foes from within.
He could be a wizard who made a deal with a powerful magical entity. In exchange for great power, he lost his face. Now, he appears in the story of Harry Potter, and his presence might be a sign of a greater, more complex plot involving power struggles within the wizarding world that Harry will eventually get caught up in.
Jon Snow could potentially have allies like the Mormonts. They have always been loyal to the Starks. Maybe even some of the Dornish houses might side with him. They have their own reasons to oppose the current power structure in Westeros. And of course, his friends from the Night's Watch who left with him or believe in his cause could be his allies in this conquest. He might also gain the support of some of the maesters who see the value in his leadership for the future of Westeros.