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.
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.
Sometimes Draco might curse Ron out of jealousy or when they're competing for something. Maybe it's in a classroom when Ron gets better grades or in the corridors over a prank gone wrong.
Well, there are numerous fanfictions in the Harry Potter fandom. Regarding 'Ron Weasley uses Hermione' fanfiction, it could cover a wide range of plots. It might be about Ron using Hermione's intelligence to solve a mystery at Hogwarts, or perhaps using her connections to get something done. To find such fanfictions, you can also check out some Harry Potter - themed fanfiction communities on social media platforms, where fans often share and recommend their favorite stories.
I think there are several such fanfictions out there. You might want to check popular fanfiction platforms like Archive of Our Own or FanFiction.net and use relevant search filters to find one that matches your description.
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.
I recommend "White Night Island" and "The Last Alchemy Fantasy" to you. These two novels have elements of curse illusion and alchemy, and the plot is quite exciting. I hope you like my recommendation, Mwah ~😗
One interesting plot could be that James, having survived, decides to go into hiding with his family in a more secretive way. He uses his survival as a motivation to become a stronger wizard and starts to train secretly, waiting for the right moment to face Voldemort again.
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.