One interesting plot could be a character sacrificing their own powers to save their loved one from a powerful dark force in the Twilight universe. For example, a vampire might sacrifice their immortality to break a curse on a human they love.
Bella and Edward are often main characters in such fanfiction. Since their relationship is central in the original Twilight series, in fanfiction about sacrifices, they could be the ones making sacrifices for each other. For example, Edward might sacrifice his vampiric nature to give Bella a more 'normal' life if she so desires.
In some fanfictions, weirwood trees are depicted as getting sacrifices. Usually, these sacrifices are often part of some ancient or ritualistic practices within the fictional world. They might be seen as offerings to the old gods that the weirwood trees are associated with, perhaps to gain favor, knowledge, or power.
In Hunger Games fanfiction, one of the greatest sacrifices could be a character giving up their own life to protect a loved one. For example, a district tribute might sacrifice themselves in the arena so that their younger sibling or friend has a chance to survive. This shows selfless love and the extreme lengths people will go to in the harsh world of the Hunger Games.
I'm not entirely sure specifically as 'hadin sacrifices oc fanfiction' could be very unique. It might be a fan - created story where a character named Hadin makes sacrifices related to an original character (OC). Without reading it, it's hard to say more.
In fanfiction, Naruto sacrificing himself for Obito could be a very emotional and dramatic concept. It might show Naruto's ultimate selflessness, believing that Obito is worth saving at the cost of his own life. This could be due to Naruto seeing the good in Obito that others might not, like the part of Obito that was once a kind - hearted shinobi.
When Batman sacrifices himself in fanfiction, it can also be a way to explore the darker side of Gotham. Maybe his sacrifice was in vain, and the city falls deeper into crime and corruption. Or perhaps it leads to a new kind of hero emerging, inspired by Batman's last act. It could also show how the villains react, some might be glad that their nemesis is gone, while others may feel a strange sense of loss as Batman was always a worthy opponent.
Often, the greatest sacrifices are shown through emotional and heart - wrenching scenes. The author might describe in detail the character's thoughts and feelings as they make the decision to sacrifice. For instance, when a character decides to sacrifice their life, the fanfiction could show their internal struggle, their love for those they are protecting, and their acceptance of death.
The OC could be an outcast in the ninja world. They don't belong to any major clan and are constantly on the move. Hidan might see this OC as an easy target. The OC might have some unique skills, like being able to communicate with animals, but these skills are not enough to protect them from Hidan when he decides to sacrifice them for his own dark purposes.
In a 'Hidan Sacrifices OC' fanfiction, the OC could be a sacrifice to stop some greater evil. Hidan, believing in his twisted way that sacrifice is the answer, chooses the OC. The OC might be an innocent bystander or someone who was in the wrong place at the wrong time. However, the sacrifice could have unforeseen consequences. Maybe it angers other characters in the Naruto universe who then seek revenge on Hidan for his cruel act.