In the fanfiction, the snake familiar could be a symbol of Harry's connection to a different side of magic. It might help him in his search for Horcruxes, for example, by being able to sense dark magic. It could also be a form of protection, scaring off those who would harm Harry with its intimidating presence.
In a fanfiction, the snake familiar could be a reincarnation of an ancient wizard who was wronged. It chooses Harry as its new master because it senses his pure heart and the power within him. The snake could have extraordinary abilities, such as the power to turn invisible at will or the ability to create illusions to deceive enemies. Harry would have to learn to trust this strange familiar and work with it to overcome various challenges.
Andromeda often has a significant role in fanfiction related to Harry Potter. She may provide Harry with a safe haven when he feels alone. Given her status as an outcast from the Black family due to her marriage to a Muggle - born, she can relate to Harry's feeling of being different. She could also introduce Harry to new allies within the wizarding world who were previously associated with the Black family but now oppose Voldemort. In some fanfictions, Andromeda's knowledge of old spells and potions, passed down through the Black family, helps Harry in his adventures.
One possible scenario in such a fanfiction could be that Harry discovers the snake in the Forbidden Forest. The snake might be a rare and intelligent species, perhaps a Basilisk hybrid. It could communicate with Harry through Parseltongue and help him in his adventures, like warning him of approaching danger or finding hidden passages in Hogwarts.
Well, in certain fanfiction scenarios, the snake might have a special bond with Harry Potter. Maybe it was once saved by Harry, and now it feels a sense of loyalty towards him. The snake could then use its unique skills, such as its ability to move stealthily through the Forbidden Forest, to gather information about threats against Harry. It could then lead Harry to safety or help him plan a counter - attack against his enemies.
His land ownership in fanfiction might change the power dynamics. If he has a large piece of land, he could have more resources at his disposal. This could attract both friends and foes. For example, some might seek his protection, while others might try to take the land from him for its magical properties or strategic location.
In some fanfictions, Harry's revelation can also create conflict. For instance, if there are characters who have been living in a world where Harry Potter was a symbol of a past they wanted to forget or move on from. His reappearance can stir up old grudges or new power struggles within the wizarding community.
The dark familiar can make Harry more cautious. For example, if it has a tendency to attract dark magic or dangerous situations, Harry has to be more aware of his surroundings. This forces him to grow in his ability to sense trouble.
One common trait could be its intelligence. Snakes are often depicted as smart in wizarding lore, so it might be able to understand complex commands or situations. Another trait could be loyalty to Harry.
In some fanfictions, he might find it in the Forbidden Forest during one of his adventures. Maybe while exploring the deeper parts of the forest that are off - limits to most students, he stumbles upon a young pegasus in need of help. Harry, being the kind - hearted person he is, bonds with the pegasus and it becomes his familiar.
The snake might use its ability to move stealthily. It could spy on the enemies for Harry Potter. For example, it can slither into hidden places where humans can't easily reach and gather important information.