Another theme is power exploration. Cobra has unique powers, and fanfictions often explore how he can further develop and use those powers in different situations. It could be in battles against new enemies or in helping the Fairy Tail guild in unexpected ways.
Character relationships are also a big theme. How Cobra interacts with other Fairy Tail characters, like Natsu or Lucy. Some fanfictions focus on him forming unlikely friendships or even romances, which adds a whole new dimension to his character within the Fairy Tail world.
One possible idea for a fanfiction could be a story where Kinana and Cobra meet again after a long time. Maybe Kinana has developed new powers and Cobra is on a path of redemption. Their encounter could be filled with tension as they remember their past interactions, both good and bad.
They could fall in love. In fanfiction, it's common to explore romantic relationships. Kinana's gentle nature and Cobra's tough exterior could create an interesting dynamic in a love story.
One common theme is friendship. Just like in the original Pokemon and Fairy Tail series, in fanfictions, characters from both universes form strong bonds. For example, Ash from Pokemon might become friends with Lucy from Fairy Tail and they help each other out.
One common theme is the combination of powers. Since both Naruto and Fairy Tail have their own unique power systems, fanfictions often explore how these powers can be combined or used in new ways. For example, Naruto's jutsu combined with Fairy Tail's magic. Another theme is the crossover of characters' personalities. The determined and hard - working nature of Naruto characters mixing with the lively and rowdy personalities of Fairy Tail members.
Magic exploration is also a prevalent theme. Since it's a fairy tail related fanfiction, Sienna usually gets involved in exploring different types of magic, whether it's a new form of magic she discovers or trying to understand the mysteries behind existing magic. Adventure is yet another common theme. Sienna embarks on various quests and travels to different and often dangerous places in these stories.
A common theme is the clash of different power systems. Since Fairy Tail has its magic system and Berserk has its own dark and brutal power elements, fanfictions often explore how these two power systems interact.
In a lot of Fairy Tail Karen fanfiction, the theme of power and growth is prominent. Karen has to train and become stronger, facing challenges along the way. There are also stories that deal with the theme of loyalty, where Karen has to prove her loyalty to the guild or her friends, especially during difficult times.
Friendship is also a big theme. Just like in the original works, characters from both universes form bonds. For instance, a character from Overwatch might team up with a Fairy Tail mage and learn about loyalty and friendship in a new way. It shows that no matter the world they come from, the value of friendship remains strong.
The themes in mermaid fairy tail fanfiction are diverse. A very prevalent one is friendship. Mermaids form strong bonds with their fellow sea - dwellers or sometimes with humans they encounter. The struggle between good and evil is also common. Mermaids might have to fight against evil sea witches or other malevolent forces. Additionally, the theme of the beauty and mystery of the underwater world is often explored, as mermaids are part of this enchanting realm.
A common theme is power. Since August is a very powerful character, many fanfictions explore his power limits and how he can further develop or control it. Another theme is redemption. Given his complex backstory, some stories might focus on him seeking redemption for his past actions.