You could incorporate the magic of the Harry Potter world into his treatment. Maybe there are some rare potions or spells that could potentially help, but they come with their own risks and side - effects. For example, a potion that might slow the cancer but also makes him lose his ability to use magic temporarily. This would create a great conflict within the story.
To make it unique, explore how the wizarding community reacts to Harry having cancer. Some might be sympathetic and try to help, while others might see it as a sign of weakness. The Hogwarts teachers could also get involved, with Dumbledore perhaps guiding Harry through this difficult time, using his wisdom to give Harry hope and strength.
Yes, perhaps a fanfic where the concept of mates is not just a romantic pairing but a deep, platonic bond. And in this bond, one friend discovers the other has cancer. Meanwhile, they are both survivors of abuse in different forms in the wizarding world. The unique part could be how they use magic in unconventional ways to support each other through these hardships, like creating special spells for pain relief or emotional healing related to the cancer and the abuse trauma.
Foxes could be part of a new magical species in the fanfiction. They could have their own language and culture within the wizarding world. For instance, they might live in a hidden part of the Forbidden Forest and have a special connection to nature magic that the main characters need to understand to defeat a new dark force. This would expand the world - building in the fanfiction.
Perhaps a character from the 'Harry Potter' world visits the Muggle world and becomes fascinated with whiskey. They then bring the concept back to Hogwarts but in a magical way. For example, they create a whiskey - infused spell that gives the caster a boost of confidence and strength. This would not only combine the two elements but also explore the cultural exchange between the wizarding and Muggle worlds and how magic can be influenced by Muggle items like whiskey.
A unique way could be to have Hera send one of her mythical creatures to help Harry. For instance, a magical pegasus that can fly faster than any broomstick and has special powers like healing. Harry could use it to his advantage in battles or to travel quickly to different places.
One unique way to use 'cauterize' in Harry Potter fanfiction could be in a time - travel plot. For instance, a character from the present travels back in time and witnesses a medieval - like magic where cauterizing was a common practice for treating all kinds of wounds, even those caused by magic. This could add an interesting historical and magical aspect to the story.
One way is to have a Creepypasta - like curse befall Hogwarts. For instance, a curse that makes the staircases move in a truly chaotic and disorienting manner, similar to the unease that Creepypasta stories create. The students would have to navigate this new and scary situation, perhaps with some help from the teachers who are also baffled by this strange occurrence.
A pegasus could be a time - traveling familiar. It could take the main character back in time to witness important events in the Harry Potter universe's history. This would add an exciting twist to the story.
Another way to combine them uniquely is through a time - travel plot. Harry Potter could be sent back in time to a period when Doctor Fate was first learning his powers. Harry's knowledge of magic could help Doctor Fate in some way, and in return, Doctor Fate could teach Harry some secrets of the universe that would help him in his fight against Voldemort in the future. This would create an interesting dynamic between the two characters from different universes.
One unique way is to make the Tower of London a key part of a time - travel plot. Say, a powerful spell was cast in the Tower long ago that is now causing disruptions in the present - day wizarding world. Harry and his friends have to travel back in time to the Tower's past to stop the spell from being cast in the first place. The Tower could be filled with different eras of magic and different types of magical defenses that they have to overcome. Also, the Crown Jewels in the Tower could be magically enhanced items that have a special connection to the wizarding world, like they can be used to unlock a powerful magical vault.
Hedwig can be characterized as a bit of a mischief - maker. Instead of just being a typical owl that delivers letters, she could play little pranks on Harry and his friends, like hiding their quills in hard - to - reach places.