In fanfiction, plants like the Mandrake might have different growth rates. For instance, instead of taking a certain number of months to mature as in the books, it could take years or just weeks. This change can be used to create unique plotlines, such as a wizard needing a fully grown Mandrake urgently but having to deal with the unexpected growth time.
In some Harry Potter fanfiction, the Venomous Tentacula can be made to have a mind - controlling ability. This is different from the original where it was just a dangerous plant. This new function can be used to drive the plot forward, for example, when a group of villains use it to take over a wizarding school or a magical community. It gives a new and often darker twist to the story compared to the original books.
The Whomping Willow in fanfiction can have functions that are not in the original books. It could be a portal to a secret magical realm. Writers might do this to add an element of mystery and adventure. In the original, it was mainly a dangerous obstacle. But in fanfiction, it could be a key to a whole new world of magic and secrets, which allows for more complex and exciting storylines.
One major difference is in the area of the Patronus Charm. In the original books, it mainly serves as a defense against Dementors. However, in Prodigy fanfiction, it could be used as a form of communication between characters. The charm's light or shape could carry messages, which is a new and creative take on the charm.
In fanfiction, Dobby is often given more agency. In the original books, he is very much a servant - like figure at first. But in fanfictions, he can be a leader in the fight against the dark forces. For example, he might lead a group of house - elves in a rebellion against the Death Eaters who are cruel to them.
In the original books, goblins are mainly shown in relation to Gringotts Bank. But in fanfiction, they can have more diverse roles. They might be shown as having their own political agendas outside of the bank operations.
In fanfiction, naruto clones can have enhanced abilities. For instance, they might be able to hold chakra for much longer than in the original. This allows them to perform more complex jutsu without disappearing quickly.
In the original Harry Potter series, gargoyles are mainly just part of the castle's architecture. But in fanfiction, they can have active roles. They might be able to move and interact. For example, a gargoyle could help a character find a hidden passageway that isn't mentioned in the books.
Some fanfictions might depict the Dursleys as having a more complex relationship with Harry. They could be in a situation where they have to protect Harry from a greater threat, which makes them put aside their differences. For example, a dark wizard could be targeting Harry, and the Dursleys realize that their home is the safest place for him at the moment, so they have to work together with Harry to keep him safe.
The power of augureys is often enhanced in fanfic. While in the books, their significance was somewhat limited. In fanfic, they might have the ability to heal with their feathers, or their song could have the power to put dark creatures to sleep. This expansion of their abilities makes them more interesting and central to the plot in many fan - created stories.
In the original books, Thestrals were not as prominently featured. But in fanfic, they can be the main focus. For instance, in some fanfic, Thestrals are shown to be more intelligent and able to communicate in ways not shown in the books.
His character arc can be very different. In the books, his development was somewhat limited, but in fanfiction, he could have a complete transformation. He might start to oppose the dark side more actively and become a hero - like figure, which is a big contrast to his original role.
In the original series, Hedwig is mainly a faithful owl companion. But in fanfiction, she can be much more. She could be a magical entity with her own backstory and motives. For instance, some fanfictions might explore her origin in more detail, like she was bred from a special line of owls with unique abilities.