One scenario could be a powerful dark magic spell cast on a wizard or witch. For example, in some fanfictions, a dark wizard might use a curse to block a character's magical abilities as a form of punishment or to gain an advantage. Another could be due to a magical artifact that has the power to suppress magic when in close proximity. For instance, a cursed necklace that, when worn, slowly drains a person's magical powers until they are completely blocked.
Some characters might search for a counter - spell. They could visit old and wise wizards or witches, or search through ancient magical tomes in the hopes of finding a way to reverse the block on their abilities. For example, Hermione in fanfiction might spend hours in the library, poring over rare books to find a solution.
In some fanfictions, Harry Potter might absorb abilities through magical artifacts. For example, he could find a special amulet that transfers the powers of the previous owners to him when he touches it.
One possible reason could be copyright issues. The 'Harry Potter' franchise is very protective of its intellectual property, and fanfiction might sometimes cross the line in terms of using their concepts too freely. Another reason could be to maintain the integrity of the original story's lore. Since metamorphmagi are a specific part of the 'Harry Potter' world, perhaps some fanfictions were distorting or misinterpreting this concept in ways the rights holders didn't like.
Fans could try to find alternative fanfiction platforms that might have different rules regarding 'Harry Potter' and metamorphmagus - related stories. Some independent or less - well - known platforms might be more lenient.
Well, 'harry potter blocked power fanfic' might refer to a fanfiction in which Harry Potter's powers are being blocked. This could be due to a dark spell cast upon him by a new villain in the story. It could also be related to some ancient magic that has been awakened which has an unexpected side - effect of blocking his powers. The fanfic could then be about his journey to break this block, perhaps with the help of his friends like Hermione and Ron.
The tracer abilities in the fanfiction might be described as an extension of Harry's existing magical skills. Given his natural talent and his connection to powerful magic (like his defeat of Voldemort), these tracer abilities could be a new manifestation. Maybe he can trace not only spells but also the intentions behind them. So if someone has cast a spell with ill intent, he can follow that intention's 'trace' through the magical environment. It could be a very useful ability in his adventures, whether in Hogwarts or in the wider wizarding world.
He might become more confident. With the tracer abilities, he can take on more challenges. For example, if he can trace dark magic, he will be more willing to go after dark wizards.
In Harry Potter fanfiction, a rare ability could be the power of true prophecy. While there are seers in the original series, in fanfic, a character might have the ability to see not just vague glimpses of the future but detailed and accurate prophecies that can change the course of the wizarding world. Also, the ability to heal any wound or illness instantaneously could be considered rare. This would make the character a sort of super - healer, far more powerful than Madam Pomfrey. And some fanfictions might explore the ability of a wizard or witch to transform into any object or creature at will, not just those within the Animagus transformation limits.
Some fanfictions give characters the ability to communicate with animals on a much deeper level than normal in the Harry Potter world. Instead of just understanding general emotions or simple messages, they can have full - blown conversations. This could lead to uncovering secrets that the animals have witnessed, or using them as spies in a battle of wits against the dark forces.