Another theme could be about identity. Harry has his own journey of discovering his true identity as a wizard and his connection to Voldemort. Nightwing also has his own identity issues, being part of the Bat - family. In fanfiction, they could compare notes or help each other with their identity - related problems. For example, Harry could use his magical knowledge to help Nightwing uncover some secrets about his past that are magically hidden.
One common theme is the clash of different power systems. Harry Potter has magic, while Nightwing has his combat skills and gadgets. Another theme could be identity. Characters from both universes might question who they are when placed in a different world. For example, a Hogwarts student in Gotham might struggle with their magical identity in a world without magic.
One common theme is friendship. For example, there are fanfictions that further explore the friendship between Harry, Ron, and Hermione, showing their bond through different challenges at Hogwarts. Another theme is the exploration of magic. Writers might create new magical concepts or expand on the existing ones in the 'Harry Potter' world.
Overcoming adversity is also a big theme. The blind characters in fanfictions usually face a lot of challenges in a world that relies heavily on visual cues for magic. But they find ways to use their other strengths and the support of their friends to succeed.
One common theme is the clash of two different worlds. The magical world of Harry Potter with its wizards, spells, and Hogwarts, and the vampire - centric world of the Cullens. Another theme is often the idea of friendship or alliance forming between the characters of the two universes.
One common theme is loneliness leading to self - reflection. Characters in isolation often take time to think about their values and goals. For example, if a character is ostracized for being different, they might question what it really means to be a part of the wizarding world. Another theme is the search for connection. Isolated characters usually long for relationships, and this can drive their actions in the fanfiction. They might go to great lengths to find someone who accepts them.
One common theme is identity exploration. For example, when a character is transformed, they often have to figure out who they are in their new form. Another theme is friendship. The transformed character's friends may have to accept and help them through the changes. Also, there's the theme of adapting to new situations. Just like in the original Harry Potter series where students adapt to Hogwarts, in TG fics, the transformed character has to adapt to their new state.
The theme of grief is also prevalent. After the war, many characters have lost loved ones. Fanfics could focus on how Ginny Weasley, for example, copes with the loss of Fred. She might go through stages of denial, anger, and depression, and the fanfic could be about her journey to heal and move forward. It could show how her friends and family support her through this difficult time.
Another theme could be the friendly competitions between the houses. The Quidditch matches in fanfiction can sometimes be described as having 'adorable violence'. The players are aggressive on the pitch but it's all in the spirit of the game and the camaraderie among the students makes it 'adorable'.
Often, there's a theme of adventure. Characters have to navigate through the rain of flames, whether it's to save someone or to stop an evil force. In some fanfictions, the rain of flames could be a sign of an ancient magic awakening. This can lead to characters going on quests to understand and control this newfound magic. It also might be related to the theme of mystery, as the origin of the rain of flames might be unknown at first.
In Harry Potter reborn fanfiction, a frequent theme is redemption through rebirth. A character who made mistakes in their previous life gets a second chance. For instance, a Death Eater could be reborn and try to atone for their past actions. Also, there's often the exploration of how the reborn character affects the prophecy. Since Harry was central to the prophecy, a reborn character might interact with it in unexpected ways, like trying to prevent it or fulfill it in a different manner.