Another way could be via some sort of magical artifact. For example, he discovers an ancient amulet that has the power to enhance his natural abilities. When he touches it, it starts to merge with his essence, gradually making him stronger and endowing him with new powers like the ability to control different elements related to water, not just manipulate it.
He could also face challenges related to the knowledge required to use his power effectively. In fanfiction, there might be ancient texts or prophecies that he needs to decipher in order to fully understand and utilize his new powers. But these texts could be written in a long - lost language or be guarded by powerful entities, making it difficult for him to access the necessary information.
One great Percy gains power fanfiction is 'Percy's Ascent'. In it, Percy discovers an ancient power within himself through a series of trials. It's really exciting as it shows his growth from a normal demigod to a super - powered one. Another one is 'Power Surge Percy' which focuses on Percy getting a new kind of water - based power that no one has seen before.
He might face internal struggles. Since it's the power of his enemies, it could have a corrupting influence. He has to constantly fight against the darker aspects of that power, like the urge to use it for revenge or in a more aggressive and unethical way.
One popular theme is self - discovery. As Percy gains power, he often has to figure out who he is now and how this new power fits into his identity. Another theme is the struggle for control. The new power can be overwhelming, like in 'Percy's Ascent' where he has to learn to control his newfound abilities to avoid hurting those he loves.
He would probably start to see the world in a different way. Since Hephaestus skills involve a deep understanding of mechanics and construction, Percy might start noticing the weak points in buildings and how things are put together. This could be useful not only in battles but also in his daily adventures. He could use his newfound skills to repair things quickly or even modify existing structures to make them more defensible. Also, he could communicate better with the Hephaestus cabin kids, sharing ideas and learning from them about different crafting techniques.
In other cases, it might be a result of a curse or a spell gone wrong. His enemies could be trying to harm him with a dark spell, but instead, it backfires and he ends up absorbing their power. For example, if they were trying to drain his own power but the spell reversed on them.
Well, in many fanfictions, if Percy Jackson is made into the God of Power, it often gives the author a chance to explore different power dynamics. He could potentially have the power to influence the fates of other demigods. This would add a whole new layer of complexity to the existing Percy Jackson universe. He may also have new responsibilities that come with this godly status, which could lead to internal conflicts as he tries to balance his old self with this new, all - powerful identity.
In Percy Jackson fanfiction, possession power can be a really cool concept. It could be a power that a character gains or something an enemy uses against the demigods. For example, a new villain might have the ability to possess the minds of the half - bloods at Camp Half - Blood, causing chaos among them. This would add a new level of danger and intrigue to the story.
His water - based powers could be enhanced in a unique way. He might be able to shape water into more complex and intricate forms, like forging water - made tools or weapons, similar to how Hephaestus forges metal. This would be a new and interesting addition to his existing abilities.