In this fanfic, Harry Potter might bring his ability to apparate to quickly transport the Avengers out of dangerous situations. His experience in dealing with Voldemort could give him the strategic mind to plan against the villains the Avengers are facing. Maybe he'd use spells like Expelliarmus to disarm the bad guys. And his Invisibility Cloak could be used for stealth missions with the Avengers.
Well, perhaps Harry uses his magic skills like the Patronus charm to fend off some dark force that is attacking the Avengers. He could also use his knowledge of potions to heal any injured Avengers.
Well, it could be that Hedwig is poisoned by some magical substance. Harry, with the help of Hermione's research skills, figures out what the poison is. He then goes on a quest to find the antidote. Along the way, he faces many challenges like dangerous magical beasts and tricky spells. But in the end, he gets the antidote and saves Hedwig just in time.
It could be a powerful dark wizard who has somehow made his way into the Avengers' universe. Maybe a wizard who was banished from the wizarding world in Harry's universe and has now joined forces with some of the Avengers' villains.
In a 'Marge Saves Harry' fanfic, the plot could start with Harry ending up in Springfield for some reason. Marge discovers him and his magical abilities. When she learns of the threats he faces in his own world, she decides to accompany him back to the wizarding world. Once there, Marge uses her homemaking skills in a creative way. For instance, she could use her cooking skills to make potions or her knitting skills to create magical items that help Harry in his fight against evil. Along the way, there would be a lot of cultural clashes between the Muggle - like Springfield values and the wizarding world's traditions, which would add an interesting dynamic to the story.
In this fanfiction, perhaps the centaur is in a situation where it's about to be sacrificed in some dark ritual. Harry discovers this and races against time to stop it. He calls upon his friends Hermione and Ron for help. Hermione uses her vast knowledge of magic to figure out how to break the dark magic circle, while Ron provides some much - needed comic relief during the tense situation. Harry, of course, is the one who ultimately uses his powerful Patronus charm to dispel the dark forces and save the centaur.
Well, perhaps Zoe is in danger from dark wizards. Harry, with his skills and bravery, could use spells like Expelliarmus to disarm the villains threatening Zoe. He might also use his invisibility cloak to sneak up on them.
The fanfiction could show that Harry discovers a secret passage that leads to where Cedric is held captive. He has to face various magical traps and challenges on the way. Once he reaches Cedric, he uses his Gryffindor courage and his knowledge of magic, like the Shield Charm to protect Cedric from incoming spells, and then they escape together, with Harry being the hero who saves Cedric.
One possible plot could be that Harry, through some magical accident or powerful spell, is transported to the world of Cintra. There, he discovers the danger it's in. Using his magical skills like the Patronus charm to ward off dark creatures threatening Cintra, and his knowledge of spells to help in battles. He might also form alliances with the local warriors, teaching them some basic magic for self - defense.
In a 'Harry Potter Saves Bellatrix' fanfiction, perhaps Bellatrix is in a situation where she's about to be killed by other Death Eaters who think she's a liability. Harry, having a sense of justice and seeing the potential for redemption in her, steps in to save her. He could then try to show her the error of her ways, using his own experiences of losing loved ones to Voldemort's ideology. Bellatrix might initially resist, but gradually come to understand Harry's point of view.
Well, perhaps the vampire is being hunted by some dark wizards. Harry Potter, being the hero he is, uses his magic skills like the Patronus charm to fend off the attackers and save the vampire. Maybe the vampire has some crucial information about Voldemort that Harry needs.
Well, perhaps Harry stumbles upon a unicorn in the Forbidden Forest that is trapped by some dark magic spell. He uses his magic skills, like a Patronus charm to fend off the dark forces around the unicorn and then heals it with some herbology knowledge.