Arya's skills are diverse and powerful. In the past, she could use her skills to train younger versions of characters like Jon Snow or Robb Stark. This would make them stronger warriors. Also, her knowledge of different languages and cultures from her travels could be used to form new alliances in the past. Her skills would not only affect the military aspect but also the social and political fabric of the past.
Arya's skills would have a huge impact. Her ability to change her face would make her an extremely dangerous spy. She could go undercover in the Lannister court and expose their secrets. And her skills with Needle would mean she could protect important people. In a world full of political intrigue, her skills would rewrite the power dynamics in the past.
Well, she might try to prevent some of the tragedies that befell her family. For example, she could warn Ned Stark about the Lannisters' treachery, which could change the entire course of the story. Maybe she'd also use her assassin skills to take out threats before they even emerged.
Well, his powers would also attract a lot of attention. Scientists in the past might be intrigued by his abilities and try to study him. This could either lead to a better understanding of superhuman abilities in that timeline or it could create chaos as different groups try to capture him for their own purposes. His presence could also inspire others to strive for greater physical abilities.
Naruto's power of the Nine - Tails would be a major factor. In the past, the Nine - Tails was feared and hunted. If Naruto shows up with the power under control, it could change how people view the beast. His chakra reserves, which are huge because of the Nine - Tails, could allow him to perform feats that were previously thought impossible in the past, like quickly rebuilding a village or fending off a large - scale invasion on his own.
Their powers could actually be beneficial in some ways. Boruto's ability to think on his feet and use his various skills could help in solving some past problems. Himawari's Byakugan could be used for reconnaissance in dangerous situations in the past. But they must always remember that any use of their powers could have a butterfly effect. So they would need to be cautious and consult with each other before taking any major actions with their powers.
In a time - travel fanfic, Arya's character could develop a sense of timelessness. She has seen so much death and destruction in her own time. But by traveling through time, she might start to see the bigger picture of the cycle of life and power in Westeros. This could make her more philosophical, and perhaps she'd be less driven by revenge and more focused on the long - term well - being of the realm.
His powers would likely shock the past characters. They might see him as a great hope or a potential threat. If he uses his powers openly, it could change the way the Z - fighters train and view their own power limits.
If Katniss goes back in time in fanfiction, her skills would have different implications. Her survival skills, which were honed in a post - apocalyptic world, would be super - advanced compared to the people in the past she goes back to. For example, her knowledge of edible plants and making shelters quickly would be really useful in a more primitive past. However, her combat skills might be a bit out of place in a more civilized past. She might have to hide or tone them down. Also, her ability to read people's intentions, which she developed in the cut - throat world of the Hunger Games, could give her an edge in political or social situations in the past, but it could also make her seem a bit too calculating to some.
Time travel could make Harry more confident. If he goes back and changes things for the better, he'll see that he has the power to make a real difference. He might become less hesitant and more decisive in his actions.
Harry's personality is deeply influenced by his experiences with Voldemort. In the past, he might be more carefree initially but would quickly become a protector when faced with threats. His presence could inspire those in the past to be braver. Hermione, being the book - smart one, would try to correct historical inaccuracies in magic theory. This could lead to a revolution in the way magic was taught in the past. Ron, with his down - to - earth nature, would probably make friends easily. He could introduce muggle - like concepts to the wizarding world of the past, which might change their view of non - magical people.
Another theme is the power of knowledge. Since she has knowledge from the future, she uses it to her advantage in the past. This could be knowing about political plots or the true nature of certain characters. For instance, she could expose Littlefinger's schemes much earlier. It's about how this knowledge shapes her actions and the events in the past.