One common ability is enhanced water manipulation. Since he's still related to Poseidon, his control over water becomes supercharged. He could do things like create massive tidal waves with just a thought. Another ability is the power to manipulate chaos energy. This might be used to distort reality around him, making it difficult for enemies to attack him directly.
In some fanfictions, Percy being the son of Chaos and Poseidon is a really cool concept. It often gives him even more power. He might be able to control not just water like a son of Poseidon but also have some chaotic powers. For example, he could disrupt the order of things in a battle, or create portals to different realms which are abilities not typically associated with a normal demigod.
One common type is enhanced combat skills. It's like he has the reflexes and strategic thinking of a high - level gamer in battles. So he can anticipate his opponents' moves better. Another is the ability to 'hack' or manipulate the magical systems in the Percy Jackson universe as if they were game glitches. This gives him an edge in situations where normal rules don't seem to apply.
One common theme is identity. Since Percy has two very different divine parents, he often struggles to figure out who he really is in fanfictions. Another theme is power. With the combined powers of Lupa and Poseidon, his power levels and how he uses them are often explored. Also, acceptance by his peers is a big theme as they may view his dual heritage as strange or overpowering.
Well, a frequent theme is conflict. There's the internal conflict within Percy himself as he grapples with his dual heritage. Externally, there could be conflict with other characters who might view him differently due to his being the son of Gaea, a force that has been at odds with the demigods before. Also, themes of redemption can be present. Percy might feel the need to prove that he's not a threat like Gaea was, despite his connection to her.
Power and identity are common themes. Percy as the son of Chaos has new powers, and he has to figure out how to use them while still being himself. Another theme is relationships. The harem aspect means there are multiple complex relationships to explore.
A prevalent theme is isolation. In many fanfictions, Percy feels alone because of his strange heritage. He doesn't quite fit in with the normal demigods. Also, the theme of destiny often comes up. He has a special destiny due to his parents that he is constantly striving to fulfill.
In some fanfictions, Percy Jackson is indeed portrayed as the true son of Chaos. Writers often take creative liberties to explore new storylines and character developments. This idea can lead to very interesting and unique plot twists, such as Percy having powers beyond what we see in the original series.
The plot could center around Percy's transformation into the 'Son of Chaos'. He might have to face challenges that test his loyalty to his old friends at Camp Half - Blood while also adapting to his new role. He may also encounter new characters who are either allies or enemies in this new phase of his life. It might also involve a power struggle within the chaotic realm where he has to prove himself worthy.
There's also a fanfic called 'Poseidon's Promise'. In this one, Percy has to deal with a mysterious prophecy related to his father. The story is full of twists and turns. It delves deeper into the relationship between Percy and Poseidon, which is really interesting to read about. It also has some great action scenes with Percy using his water - based powers.
One idea could be Percy feeling betrayed by Poseidon and then finding a new family among other outcasts in the demigod world. He could form a group with them and go on adventures that are not related to Poseidon at all.