Harry Potter himself is often associated with it. After all, he's the main character in the original series and it makes sense for him to be connected to the legendary sword in fanfictions. He could use it to fight Voldemort in new and exciting ways.
Hermione Granger can also be associated with the sword in fanfiction. Given her intelligence and resourcefulness, she might discover new aspects of the sword's powers. Maybe she uses her knowledge to unlock hidden abilities of the sword, like using it to access ancient wizarding libraries or secrets.
Some fanfictions might associate the sword with a new character. This could be an original character created by the fanfiction writer. This new character could be a long - lost descendant of a great wizard who was the original owner of the sword. They would then have a special connection to the sword and use it to bring about change in the wizarding world.
Harry Potter himself is often a main character in such fanfiction. He might be the one to discover or be given the special armor. Hermione could also be involved, perhaps using her intelligence to study and improve the armor's magical properties.
Harry Potter himself is often associated. Since he has a connection to the phoenix Fawkes in the original series, it's likely that in fanfiction involving a phoenix hybrid, he might play a role in discovering or befriending the hybrid. Hermione could also be involved as she is always curious about new magical phenomena and would surely be interested in a phoenix hybrid.
Harry Potter himself could be one of the main characters associated with dragon armor. He's always getting into dangerous situations, and dragon armor could be something he discovers on one of his adventures. Another could be Hermione. With her love for knowledge, she might be the one to research about the armor's history and properties.
There are some original characters in Harry Potter fanfiction that are associated with mind control. For example, a new dark wizard who has emerged from a hidden part of the wizarding world. This character might have developed a unique form of mind control that combines magic with some form of ancient mind - bending techniques. And then there are the students in fanfics who might discover or be forced into learning mind - control magic, and they become associated with it as they struggle with the moral and practical implications.
There might be a forgotten or background character from the original series who is given super speed in the fanfiction. For example, Neville Longbottom could be an interesting choice. His growth throughout the original series could be further enhanced with super speed. He could use it to protect his friends and Hogwarts in unexpected ways, becoming a hero in a different sense compared to his original character arc.
Some fanfictions might link the swords to the Akatsuki members. They are powerful and their motives could be tied to the acquisition and use of these powerful elemental swords. For example, Pain might be interested in the swords to further his goal of bringing pain and chaos. His Rinnegan could potentially have some unique interactions with the powers of the swords.
Kisame Hoshigaki is often associated with it. Given his shark - like appearance and his use of the Samehada, which is a large and unique sword, he could be easily incorporated into fanfiction involving the 8 Sword Style. His brute strength and combat skills would make for an interesting take on how he might adapt to or already be related to the 8 Sword Style.
Dumbledore is often a main character in Harry Potter 1945 fanfiction. Since he was around during that time, many stories explore his youth, his friendships, and his early battles against the dark forces.
Often, the main character is an original creation. This could be a self - inserted character who has read the Harry Potter books in their own world and somehow gets transported into the wizarding world. They then use their knowledge of the story to become a 'conqueror' and change things for the better.
Well, of course, the tinker himself is a main character. He's the one with all the unique tinkering abilities. Sometimes, there's a sidekick character, like a young apprentice who is learning from the tinker. This apprentice can bring a fresh perspective and also get into trouble that the tinker has to get them out of.