I'm not sure specifically about 'butterfly heart' in Harry Potter fanfiction. But you can try searching on fanfiction websites like Archive of Our Own or FanFiction.net. There are so many creative works there, and you might find a story related to it by using relevant keywords in the search bar.
Well, it's a bit difficult to point out a particular 'butterfly heart' Harry Potter fanfiction without more context. However, if it has something to do with a character having a 'butterfly heart' perhaps in a metaphorical sense, like being fragile or having a heart full of fluttering emotions. You could start by looking at stories that focus on the more emotional and character - centric aspects of the Harry Potter universe. For example, stories about Luna Lovegood might be more likely to have such unique and poetic concepts as she is often associated with the strange and beautiful in the series.
It could be a symbol of a character's delicate nature. Just like a butterfly is fragile, a 'butterfly heart' might represent someone in the Harry Potter world who is easily broken or has a very sensitive emotional state.
In Harry Potter fanfiction, a butterfly could symbolize transformation. Just as characters in the original series transform, like Harry growing from a boy to a hero, a butterfly might represent a character's personal growth journey. For example, a side character could be depicted as a caterpillar at the start, shy and unnoticed, but then they undergo a 'metamorphosis' into a confident person, like a butterfly emerging from its cocoon.
One interesting 'Harry Potter Butterfly Fanfiction' could be where the presence of a magical butterfly alters the course of a Hogwarts tournament. For example, it might lead a character to discover a hidden spell during the Triwizard Tournament.
The 'Heart of Death' in Harry Potter fanfiction could refer to a number of things. It might be a magical object, a concept related to dark magic, or perhaps a metaphorical idea like the core of an evil force. Without reading the specific fanfiction, it's hard to be certain.
At the heart of the matter in Harry Potter fanfiction is often the exploration of the wizarding world beyond what's shown in the original books. It could be delving deeper into the relationships between characters, like the unspoken bond between Neville and Luna. Fanfiction might also focus on alternative storylines, such as what if Voldemort had won. This allows fans to exercise their creativity and expand on the lore that they love so much.
I'm not sure specifically if there is a well - known 'Incubus Heart' in Harry Potter fanfiction. However, given the rich lore and magic system in Harry Potter, and the limitless imagination of fanfiction writers, it could be a concept that someone has explored. It might be incorporated into a story about a new type of magical artifact or a mysterious ingredient in a potion.
One popular 'Harry Potter Broken Heart Fanfiction' is 'The Lost Love of Harry Potter'. It delves into the heartbreak Harry experiences after the death of a close friend. Another is 'Hermione's Heartache', which focuses on Hermione's emotional turmoil in a difficult situation within the wizarding world. There's also 'Ron's Broken Heart', where Ron goes through a tough time after a relationship goes sour.
There's a fanfiction where Neville Longbottom dies heroically during the Battle of Hogwarts. It's heart - breaking because Neville was always seen as an underdog who finally found his courage. His death leaves his friends, especially Hannah Abbott, devastated. The author really delved into the grief and loss that the other characters experience, and it's a very emotional read. It's more than 100 words because it not only focuses on Neville's death but also on how it impacts those around him. Neville's death changes the dynamic of the group. His friends who were used to his quiet strength now have to face a world without him. Hannah, in particular, has to deal with the loss of someone she was falling in love with. It makes you think about the cost of war and heroism.
You can try fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions, and you can search specifically for 'Harry Potter Butterfly Fanfiction' using the search bar.
There's one where a dragon heart is found by a group of outcast wizards. They believe that the dragon heart holds the key to creating a new magical society, free from the rules of the Ministry of Magic. They start experimenting with it, but soon realize that there are forces in the wizarding world that will stop at nothing to get the dragon heart for their own dark purposes. It's a really exciting read as it shows a different side of the wizarding world and how the dragon heart can be a catalyst for change.