Fear is the most common theme. Since Scarecrow is all about inducing fear, it's often central in these fanfictions. Writers explore how Batman overcomes or is affected by the extreme fear that Scarecrow creates.
The theme of redemption also sometimes appears. There are fanfictions where Scarecrow has a chance at redemption, or where Batman tries to find a way to redeem Scarecrow from his villainous ways, adding an interesting layer of complexity to their relationship.
One common theme is Scarecrow's fear toxins and how they affect different characters in the Batman universe. For example, seeing how Batman overcomes his worst fears induced by the toxin.
One popular theme is the exploration of fear. Since Scarecrow is the master of fear, fanfictions often delve deep into how different characters, especially Batman, experience and overcome fear. Another theme is the battle of wits. Batman is a brilliant detective and Scarecrow is a cunning adversary, so their mental duels are a big draw.
One common theme is the OC's journey of self - discovery while interacting with the scarecrow. The scarecrow, with its own mysterious nature, often serves as a catalyst for the OC's growth.
One common theme is the exploration of their relationship. It could be a romantic relationship or a deep friendship. Another theme is adventure, as they are often involved in exciting missions in the original show. So, fanfictions might continue those adventure - themed stories.
Common themes in 'Naruto Scarecrow Bloodline' fanfiction can vary widely. Some may focus on the combat applications of the bloodline abilities. Maybe the Scarecrow Bloodline allows for some really unique jutsu combinations. Another theme could be the relationship between the character with this bloodline and the existing Naruto characters. How do they interact with Naruto, Sasuke, or Sakura? Do they become rivals or allies? There might also be a theme of self - discovery. The character has to figure out the full extent of their bloodline powers and how to use them for good. And often, there's a sense of adventure as they go on missions and face various challenges related to their bloodline.
In some fanfictions, Scarecrow is often depicted as a formidable foe to Batman. His fear toxins play a major role. Batman has to constantly overcome the extreme fears that Scarecrow induces. For example, in certain stories, Scarecrow may target Batman's deepest traumas, like the death of his parents, and use that to try and break him. This creates a very intense dynamic where Batman has to rely on his willpower and detective skills to outwit Scarecrow.
The theme of the unknown also frequently appears. The scarecrow's true nature, its origins, and what it wants from the reader are often left as mysteries for a large part of the story. This makes the reader keep reading to find out more, as they are drawn into the enigma that is the scarecrow in these fanfictions.
One of the best Scarecrow stories is 'The Long Halloween'. In it, Scarecrow adds to the overall sense of dread and mystery in Gotham. His fear toxin is used to great effect, making it a great read for Batman fans.
Another theme could be adventure. Maybe they go on quests together, facing various challenges and relying on each other's unique abilities. For example, Elphaba's magic and the Scarecrow's resourcefulness. The fanfic could be about their journey through different lands and encounters with different creatures.
One interesting fanfiction could be about Scarecrow's origin in the 'Batman Begins' universe. It might explore his early experiments with fear toxins in more detail than the movie did.