In fanfiction, when Harry is a 'feral child', it often makes him more independent. He doesn't rely on the normal support systems like other Hogwarts students. For example, he might not trust adults easily as he's had to fend for himself. This makes his relationships more complex, especially with Dumbledore who he may see as just another authority figure at first.
In fanfiction, the 'feral child' concept can make Naruto more instinct - driven. He might rely more on his gut feelings rather than traditional ninja training. For example, instead of following a set jutsu sequence, he might improvise based on his immediate senses. This can also make him more of an outsider in the village. His different behavior and way of thinking might not be easily understood by the other villagers, which could lead to more conflict or misunderstanding. But it also gives him a unique charm as he is not the typical well - behaved ninja - in - training.
The overall tone of the story could shift. It might become darker and more philosophical. With Harry being Death's child, there would be more exploration of the meaning of life and death, and the morality of using death - related magic. The plot could also take new directions. Instead of the typical battles against Voldemort's forces, Harry could be involved in quests related to the afterlife or the secrets of death, which would be a major departure from the original story.
His communication skills could be affected. Instead of his usual witty banter, he might be more growls and short, sharp commands. This is because his feral side has taken over some of his human communication tendencies. Also, his relationships with others would shift. His friends might be a bit scared of this new side of him at first, but then try to help him come to terms with it.
Immortality can turn Harry into a wiser character. He has the chance to study magic for centuries, and this makes him a master of many different forms of magic. His view of good and evil also changes as he realizes that things are not always as black and white as they seemed when he was young. He becomes more of a diplomat in the wizarding world, using his long - earned knowledge to prevent conflicts.
Well, it can make him more complex. He may have an inner conflict between his good - natured self and the new, darker side that comes with being a fallen angel. This could lead to him being more withdrawn or moody at times.
The 'God King' concept can make Harry more confident. Instead of the sometimes - doubting boy we see in the original series, he becomes self - assured in his abilities and decisions. For example, he won't hesitate to take on powerful enemies.
His view of magic would be different. Instead of just seeing magic as something to be learned from books or teachers, he would see it as a part of nature. So, he might be more creative in his spell - casting, using natural elements in ways that others in the wizarding world haven't thought of. He could be more attuned to the cycles of life and death, and this could make him less afraid of dark magic in a sense, because he understands it as a natural part of the magical world. For instance, he might see the use of certain dark spells as a way to control overgrowth or decay in nature, but of course, he would still have a moral compass about when it's right or wrong to use such magic.
The reincarnation can completely change the relationships. For example, if Harry is reincarnated, he might not have the same bond with Ron and Hermione. He could form new friendships that were not possible in the original story.
The Sentinel concept changes the Harry Potter universe in fanfiction by adding a new type of power dynamic. In the original series, magic is the main power source. But with Sentinel abilities, it's a more instinct - based power. So, it can change how characters interact with threats. For example, a Sentinel Harry would not just rely on spells to fight dark wizards but also on his heightened senses.
It often weakens his relationships with Ron and Hermione. Instead of relying on them, he may distance himself. For example, he might not share his problems with them as he used to.