Another character could be Nico di Angelo. Although he's a demigod, in some fanfictions that play with the idea of his mortal side, his powers are so great that he could be considered among the strongest mortals. He can control the dead, which is a very powerful ability in the Percy Jackson universe.
Luke Castellan could also be seen as one of the strongest mortals in fanfiction. He was a very skilled swordsman and had a lot of charisma which he used to lead others. Even though he made some bad choices, his abilities were formidable.
Well, in a lot of Percy Jackson fanfiction, the primordial deities can be seen as the strongest beings. For example, Chaos, who is the very beginning of everything. It has the potential to create and destroy on an unimaginable scale. Since it is the origin of all existence in the Percy Jackson universe, it stands to reason that it would be extremely powerful. And there are also other primordial deities like Nyx, the goddess of the night, who has powers that are both mysterious and very potent. She can bring darkness and nightmares, and her powers are not to be underestimated in the fanfiction world.
The Hydra could be seen as one of the strongest creatures too. It has multiple heads, and for every head that is cut off, two more grow back. This makes it extremely difficult to kill. In fanfiction, it is often portrayed as a terrifying and powerful adversary. Its regenerative abilities give it an edge in battles, and it can be a real challenge for even the most powerful demigods to face. Demigods have to come up with creative strategies to deal with the Hydra's unique and powerful trait of head regeneration.
In Percy Jackson fanfiction, Percy himself is often considered the greatest hero. He has all his demigod powers and his experiences from the original series which make him a natural choice. He's brave, resourceful and has a strong sense of justice.
In many Percy Jackson fanfictions, Percy himself is often still considered one of the most powerful demigods. His control over water, being a son of Poseidon, gives him great strength. He can create massive tidal waves, control the water in a person's body, and has shown the ability to withstand great pressure both physically and mentally in the original books, which is often enhanced even further in fanfiction.
In Percy Jackson fanfiction, many might consider the Titans or the primordial deities as the most powerful beings. For example, Kronos, as a Titan, has the potential for great power and was a formidable threat in the original series. His strength and the chaos he could cause make him a strong candidate in fanfiction as well.
No. In the official Percy Jackson series, Percy is the son of Poseidon. Fanfiction often takes creative liberties and creates alternate storylines, but these are not part of the original canon.
In some fanfiction, Percy Jackson can be depicted as a powerful wizard - like figure. Fanfic authors often like to blend different mythologies and concepts, so they might give Percy powers that are more wizard - like, such as the ability to cast spells or perform magic that's not strictly part of his original demigod powers in the official Percy Jackson series. However, this is a creative interpretation within the realm of fan - created works.
In fanfiction, Percy Jackson is a badass because he combines his natural abilities as a demigod with his growth over the course of the original stories. He has the power of Poseidon, which gives him an edge in combat and in solving problems. He's been through so many challenges and has learned from them. This makes him not only physically strong but also mentally tough. Writers in fanfiction can explore his character further, showing him taking on even greater threats and emerging victorious, which cements his status as a badass.
Well, Percy has his water powers which are extremely versatile. He can control water in all forms, use it for defense and offense. For example, he can create huge waves to overpower enemies. Also, his connection to the sea is very deep and it gives him a constant source of power, which might make him stronger than Jason who mainly has wind and flight - related powers.
A powerful sorcerer who has escaped from Tartarus and wants to use the chaos of the mortal world to regain his strength. He could be targeting Percy because Percy's presence in the mortal world disrupts his plans of secretly gathering power.