One of the most powerful Harry Potter fanfictions is 'Harry Potter and the Methods of Rationality'. It reimagines the wizarding world through a scientific and rational lens, making Harry a highly intelligent and logical character. His actions and decisions are based on careful analysis, which is a very different take on the original story.
The spell 'Expecto Patronum' is also extremely powerful. It can be used to repel Dementors. It takes a lot of positive energy and concentration to cast this spell. And the spell 'Crucio' is a very dark and cruel spell that causes intense pain to the victim.
Well, Harry Potter himself is a very powerful character in fanfiction. In many stories, he might develop his powers even further beyond what was shown in the original books. For example, his ability to resist the Imperius Curse could be enhanced, and his skills in combat magic could be more refined. Also, Hermione is powerful. Her intelligence and quick - learning of various spells and magic theories give her an edge, and in fanfiction she might use her knowledge in more creative and powerful ways, like creating new spells or counter - curses.
Dumbledore would be a strong contender. He has great wisdom and powerful magic. However, Maleficent's magic is more primal and based on fairy - tale rules. If they were to face off, Dumbledore's experience and knowledge of different magics might give him an edge, but Maleficent's unpredictable nature could also make her a formidable opponent. For instance, if they were in a battle of wills, Dumbledore's calm and collected nature might be pitted against Maleficent's vengeful and proud attitude.
Harry Potter and Sirius Black are also paired quite often. Sirius was a very important figure in Harry's life. In slash fanfiction, with Harry being dark and powerful, their relationship can take on a different meaning. Sirius's wild and rebellious nature can be paired well with Harry's new - found power and darker side, creating a relationship that is full of passion and a sense of freedom.
I think a really interesting powerful wizard in fanfic is a reimagined Severus Snape. In some fanfictions, he has powers that go beyond what we saw in the books. For example, he might have a hidden ability to communicate with magical creatures on a much deeper level. This could give him an edge in battles or in solving magical mysteries.
In Harry Potter fanfic, many consider characters like a super - powered Harry Potter as one of the strongest. He might have enhanced magical abilities, like being able to perform extremely advanced spells without much effort. Another could be an AU (Alternate Universe) version of Dumbledore who has even deeper knowledge of ancient magics. Also, a fan - created dark wizard who has combined different dark arts to create a new and terrifying form of magic could be considered strong.
In a lot of Harry Potter fanfiction, Albus Dumbledore is often still considered one of the most powerful wizards. His vast knowledge of magic, his strategic mind, and his powerful spells make him a top contender. He was able to hold his own against the likes of Voldemort and also had a great deal of influence in the wizarding world.
Often, the most powerful wand in fanfiction is described as having great precision. For example, it can cast spells with pinpoint accuracy, hitting the tiniest of targets. It may also have a very strong connection to the wizard who wields it, almost like an extension of their own magical essence.
Well, it really depends on the fanfiction writer's creativity. Some might create a new, super - powerful wand that has unique properties. However, if we stick to the lore established in the original books, the Elder Wand is a top contender for the most powerful wand. It was crafted by Death itself, according to the legend, and has passed through many powerful hands over the centuries, which adds to its allure and perceived power.