One possible plot could be that Beast Boy sacrifices himself to save his friends from a powerful enemy. Maybe he uses his unique shape - shifting abilities in a way that drains all his energy, leading to his death.
Another plot could involve a disease or a curse that specifically targets his meta - human nature. As he tries to fight it off, he gradually weakens until finally, he succumbs to it, leaving his friends and the Teen Titans mourning his loss.
A possible plot in a 'death of naruto fanfic' is that Naruto is killed in a political conspiracy within the ninja world. This could lead to a war between different ninja clans as they try to figure out who is responsible. Or perhaps Naruto's death is the result of a time - traveling enemy who changes the past in a way that Naruto no longer exists, and the story could be about his friends trying to reverse this change.
One possible plot could be that Alderheart succumbs to an illness that has been plaguing the Clan. His friends and family are left to mourn his loss and deal with the void he leaves behind in the Clan's medicine den.
Maybe Spyro Oculus is cursed and has to find a way to break the curse. This could involve seeking out ancient magic or powerful artifacts. Along the journey, it meets different characters who either help or hinder it.
Trigon could also be the main antagonist. Given his immense power and his connection to Raven, he could target Beast Boy as a way to get to Raven or simply to cause chaos among the Teen Titans. His demonic powers could be too much for Beast Boy to handle, ultimately resulting in Beast Boy's death.
In the 'beast boy dominates raven fanfic', it could be that Beast Boy dominates in the emotional aspect. He might be the one to break through Raven's emotional barriers, being more in touch with his own feelings and using that to help Raven open up. This could involve him sharing his own experiences of loss or self - discovery, which in turn makes Raven more vulnerable and allows for a deeper connection between them.
One possible plot could be that Hermione fakes her death to go undercover and spy on the Death Eaters. She might have discovered a crucial piece of information that can only be obtained by infiltrating their ranks secretly, so she stages her death to avoid suspicion.
One possible reason could be a misunderstanding. Maybe Terra made a decision that Beast Boy misinterpreted as a betrayal, like siding with an enemy in a crucial moment in the fanfic's storyline.
Perhaps in the fanfic, Voldemort has found a way to nullify Harry's magic for a short time. Without his magic, Harry is just a normal boy and Voldemort takes this opportunity to beat him to death. It could also be that Voldemort has an unexpected accomplice who helps him corner Harry, leading to Harry's demise.
One possible plot could be that Ash sacrifices himself to save Pikachu and his other Pokémon from a powerful, evil force. In the heat of battle, he realizes that the only way to stop the enemy from harming his beloved Pokémon is to give up his own life. His death then has a profound impact on the Pokémon world, with his friends and Pokémon left to carry on his legacy of kindness and determination.
One possible plot could be a young soldier's journey towards death. He starts off full of hope and patriotism but gradually loses his will to live as he witnesses the horrors of war.