There might be. Fanfiction writers sometimes like to take characters out of their comfort zones and explore darker or more extreme scenarios. But in the official 'Harry Potter' lore, Harry would never casually use the Killing Curse. It's a very serious and immoral spell in the wizarding world.
If Harry uses the Killing Curse in fanfiction, it would greatly change the perception of his character. He has always been seen as a hero who stands against dark magic, so using such a curse would make him seem more morally ambiguous.
In some fanfiction, the immediate consequence of the Killing Curse is not always death. There could be a situation where the victim's soul is split, like what happened to Voldemort when he tried to kill Harry as a baby. This creates a complex situation where the victim may have a part of their being that is still 'alive' in a strange way.
Another plot might involve a character other than Voldemort using the Killing Curse in a moment of extreme desperation. For example, a Hogwarts student who is being blackmailed by Death Eaters and uses it to defend themselves, but then has to deal with the moral and magical consequences. It could show the dark side of the wizarding world even among the so - called 'good' characters.
In fanfiction, the Imperius Curse can be used to create really exciting plotlines. For instance, a character could be put under the curse and made to do something that goes against their nature. This could lead to a moral dilemma for the other characters. Do they blame the person who was cursed or the one who cast the curse? It's a great way to explore themes of responsibility and free will.
One possibility could be that there was some sort of magical interference. Maybe a powerful magical artifact or a spell was in place that deflected the Killing Curse just enough for James to survive. For example, if there was a hidden protection charm on him that he wasn't aware of.
One interesting Imperius Curse fanfiction could be about a character who manages to break free from the curse in a unique way. For example, they might use their love for another character as a sort of shield against the curse's control. In many fanfictions, the Imperius Curse is explored in different scenarios than in the original books. It could be set in a time after the main events of the series, where a new dark wizard tries to use the curse on the heroes again.
One way the Imperius Curse is used in fanfic is to show the power dynamics among different characters. A powerful wizard might use it on a group of less powerful ones to gain control. Fanfic authors might also explore the long - term effects of being under the curse. Does it leave a mental scar? These are all interesting aspects that can be explored in Harry Potter Imperius Curse fanfic.
The 'curse of fate' could also be related to a family's inherited doom. In some fanfics, a particular family might be under a curse that has been passed down through generations. This curse could determine their relationships, their abilities, or their fates in the story. For instance, a family might be cursed to always be on the losing side of magical battles.
Well, it depends on the nature of the curse mark. If it's a dark magic - related curse mark, it might attract dark creatures towards Harry. This would put him in constant danger. He would have to be extra vigilant all the time. Maybe he would start to study more about curse marks on his own to find a way to get rid of it, which could lead him to some hidden secrets in the wizarding world that are related to curse marks.