Severus Snape is another character who could be considered a potions genius in fanfic. In the official story, he was a master of potions. Fanfic writers might explore more of his early days as a potions prodigy or create scenarios where he imparts his deep knowledge of potions to other characters in unique ways.
A deep understanding of ingredients is crucial. They need to know not just what each ingredient does, but also how different ingredients interact with each other. For example, knowing that adding a sprig of dittany at a precise moment can change the entire nature of a potion.
One possibility is that a potions accident could cause a time - related mishap. Maybe the potion was supposed to be a simple Sleeping Draught but due to the accident, it creates a time - loop. The characters find themselves repeating the same day over and over until they figure out how to reverse the effects of the botched potion. This could be a really interesting plot device in a Harry Potter fanfic as it would allow for a lot of character development and exploration of different choices within the same day.
Love potions in fanfics can also have side - effects. Besides the obvious infatuation, a character who has been given a love potion might experience mood swings. They could be extremely happy when around the target of their infatuation but then become depressed or angry when separated. And in some fanfics, the effects of the love potion can be transferred to others through magical means, like a touch or a spell gone wrong.
In some fanfics, Snape may use a potion similar to the Felix Felicis, the luck potion. But instead of just bringing luck, this modified version could be used to change Harry's fate or the course of his actions. It could make Harry more inclined to make certain choices that Snape desires. Also, there could be a potion that can temporarily suppress Harry's magic, which Snape might use to keep Harry out of trouble or to protect him in a different way.
The effects of potions in Harry Potter fanfics can be quite diverse. For example, the Polyjuice Potion, as mentioned before, allows for physical transformation. This can lead to all sorts of plot twists, like a character impersonating a villain to gain information. The Felix Felicis gives a sense of extreme luck. In fanfic, this might mean a character always finding the right solution or avoiding danger at the last minute. The Amortentia, being a love potion, can cause characters to become infatuated, which can create complex relationship dynamics.
Obviously, the Potions Master himself is very interesting. His complex personality, deep knowledge of potions, and often misunderstood nature make him a central focus. Then there are the students who interact with him, like Hermione. Her intelligence and eagerness to learn potions create some great scenes. Also, any original characters created by the fanfic authors can be really interesting, as they can bring new dynamics to the story.
Well, his potion skills might make Snape a bit more lenient towards him. Since Snape is the potions master, he might respect Harry's talent more, reducing the usual animosity. With his friends, Harry could share potion-making tips, strengthening their bond. For example, he could help Hermione with some tricky potion recipes, and she'd be impressed by his newfound skills.
One interesting 'Harry Potter' love potions fanfic could be about a character accidentally using a love potion on the wrong person. For example, Neville might accidentally use a love potion on Hermione instead of the girl he actually likes. This could lead to a series of comical and awkward situations as Hermione starts acting out of character, being overly affectionate towards Neville while he's trying to figure out how to reverse the effects.
In the fanfiction world, it could be a gift from a powerful being. There are many powerful wizards or magical creatures in the Harry Potter universe. Maybe one of them, seeing Harry's importance or just out of kindness, bestowed this immunity upon him to protect him from the potential chaos that love potions can cause.