He might start by killing small animals in a really cruel way as a sign of his growing darkness. Then he could target people who have wronged him in the past.
Perhaps he would use his knowledge of magic in very sinister ways. For example, he could create undetectable curses to harm or kill his victims. He might also befriend his victims first, getting to know their secrets and then using those against them when he decides to strike. Another event could be that he leaves cryptic messages at the scenes of his kills, taunting the authorities or other characters in the story.
One possible event is that Harry begins to target those he sees as a threat to his new - found 'killer identity'. He could infiltrate a group of people under a false guise, all the while planning their demise. He might also have a ritualistic way of killing, like always using a certain object or spell. This would add to the creepiness factor. For instance, he might use a cursed dagger that has some dark backstory of its own. As he continues his killing spree, the story could show the increasing paranoia among the other characters, who start to suspect that someone they know is the killer.
Perhaps she might accidentally set off a series of magical explosions in the Hogwarts corridors while trying out a new spell she made up on the fly. This would lead to chaos as students and teachers scramble to figure out what happened and how to fix the damage.
There could be an increase in the number of Death Eater attacks on both Muggle - born wizards and wizarding families. For instance, they might start raiding small wizarding villages.
Sure. One example could be that Harry, as a feral mutant, has enhanced senses like super - sharp hearing and smell. He might use these to hunt for food in the wild, away from normal civilization. Another could be that he has some sort of feral appearance, like claws or fangs, which he uses to defend himself against those who would harm him.
Maybe Harry is unable to perform basic spells because he's so coddled that he hasn't had the chance to practice properly. So, his friends have to constantly protect him from minor threats like a pesky pixie.
Maybe Harry uses his wolf abilities to track down an enemy in the forest. His enhanced senses, like his sense of smell as a wolf, would be really useful for that.
Sure. One example could be that Harry is able to understand ancient runes and spells without any formal training. He just looks at them and immediately knows what they mean and how to use them. Another could be that he has an inborn ability to communicate with magical creatures in a way that no one else can, and he uses this to gain their help in battles or to solve problems in the wizarding world.
In this fanfiction, Harry could be a player in the sense of being a political player within the wizarding world. He might be secretly forming alliances with different wizarding families to gain power and influence. He uses his status as 'the boy who lived' to his advantage. In relationships, he could be a bit of a heartbreaker. He goes on dates with Hermione, Ginny, and other girls, but is never fully committed, causing some drama and tension among his friends and the girls themselves.
Maybe there are ice - based duels in Hogwarts where students use ice spells instead of the traditional ones. For example, instead of a Stunning Spell, they could have an Ice Bind Spell that freezes the opponent in a block of ice. And there could be a new area in Hogwarts, like an Ice Dungeon, where students practice their ice elemental magic.
Maybe her mutant ability is telepathy, which could make her really good at reading the minds of her enemies in the wizarding world. This could help her solve mysteries or avoid dangerous situations. At the same time, it could also cause problems if other wizards find out she has this power, as it might be seen as an 'unfair' advantage or something dark.
One possible event is that they meet a kind - hearted stranger on the road. This person offers them food or a place to stay for the night when they are in a tight spot. Also, they might get lost and end up in a small, charming town that they didn't plan to visit. There, they discover local traditions and make new friends.