Well, he could be on an adventure to retrieve a lost magical artifact. His giant sword would be a great asset in battles against mythical beasts sent by the Titans to stop him. He might also travel to different realms, like the Underworld, and use the sword to defend himself from the denizens there.
In this fanfiction, Percy could be sent on a mission to stop an ancient evil from awakening. He would use his giant sword to fight hordes of demons and dark spirits. Along the way, he might team up with other demigods, and they would rely on his sword skills in their battles against the forces of evil.
Percy would likely be drawn to the Forbidden Forest. His adventurous spirit would lead him there. He might encounter magical creatures that are completely new to him. He could try to communicate with them using his own experiences with mythical beasts from his world. And when it comes to classes, he'd have a hard time with some like Potions as it has no equivalent in his demigod training, but he'd probably excel in Defense Against the Dark Arts as he's used to fighting all kinds of dangerous foes.
Well, often in these fanfictions, Percy gets to interact with the ancient Greek heroes in a more in - depth way. He could team up with Achilles and learn some new combat skills from him. And he might be involved in some sort of mystery that is related to the lost artifacts of ancient Greece. Maybe he has to find a certain magical item that was once used by Zeus himself to save the world from a new threat.
Perhaps he discovers it in an ancient, hidden temple dedicated to a forgotten god. The sword could be a gift from this god, who sees potential in Percy to use it for good.
He might meet some talented witches and wizards. Maybe there would be a student who is an expert in magical beasts and they could share stories about their encounters with strange creatures.
Yes, in some fanfiction, Percy Jackson can be depicted as a Frost Giant. Fanfiction allows for a lot of creative interpretations, and authors might take the existing Percy Jackson universe and twist it in unexpected ways, like making him a Frost Giant.
He might encounter advanced technology that he has no idea how to use. For example, flying cars or holographic communication devices. It would be really funny to see him struggle with these new things at first.
Percy going to Ilvermorny would be a wild ride. First, he'd be amazed by the castle itself. The four houses would be a new concept for him. He might be sorted into a house based on his heroic nature, like Thunderbird perhaps. He'd introduce the idea of Greek gods to the students there, which would cause quite a stir. And his relationship with Annabeth would be put to the test as they are separated by different magical institutions.
Well, it would change things a great deal. For one, Percy's combat style is mainly based on his swordsmanship and his water - related powers. If he had a sniper rifle, he could take out enemies from a distance. This would give him an advantage in battles where getting close might be dangerous. But it also goes against his traditional style. He'd have to learn how to aim accurately, deal with ammo, and keep the rifle in good condition, which is a whole new set of skills compared to what he's used to.
Well, he might use the high - frequency sword to fight against dark creatures. Maybe he has to face a powerful dark wizard and the sword gives him an edge in the battle. He could also use it to explore hidden and dangerous places in the wizarding world that are protected by magic barriers which the sword can somehow penetrate.
In the fanfiction, Percy might face new challenges related to his demigod status. Maybe he has to deal with the aftermath of the war, like rebuilding Camp Half - Blood or helping new demigods adjust.