In some fanfictions, the antagonists can be the most powerful characters. For instance, a Titan or a powerful monster that has acquired some sort of new, enhanced power. They pose a great threat to the demigods and force them to think outside the box and combine their powers in new ways to defeat them.
Often, characters like Percy Jackson himself remain very powerful in fanfiction. His control over water is a formidable power, and in fanfic, it might be enhanced even more, making him one of the top contenders. Also, characters related to the Big Three gods (Zeus, Poseidon, Hades) tend to be powerful due to their heritage.
There are some original characters created in fanfiction that can be extremely powerful. For example, a demigod who is the child of a minor god but has a special ability that makes them stand out. Maybe they have the power to manipulate time on a small scale, which can give them an edge in battles and tricky situations.
Percy Jackson himself is often very popular in these fanfictions. He has a large fan base from the original series, and fans love to see him in new and exciting situations in the Powers of Chaos stories. Annabeth is also a favorite. Her intelligence and strategic thinking add depth to any fanfic she's in. Another popular character is Nico di Angelo. His dark and brooding nature, along with his unique powers, make him a great character to write about in these fan - created stories.
Another power that could make a demigod the most powerful is the ability to manipulate time. In some fanfictions, a demigod might gain this power, either through a special quest or some kind of divine gift. This would allow them to stop time, rewind it, or speed it up for themselves or others. It would give them an incredible advantage in battles, as they could freeze their opponents and strike at will.
Nico di Angelo is another popular character in these fanfics. His control over the dead and shadow - traveling abilities offer a lot of room for creativity. Fanfic writers often give him new powers or expand on his existing ones, like making his control over the dead more powerful or adding new elements to his shadow - traveling. His brooding and mysterious nature also makes him an interesting character to write about in the context of powers.
In fanfiction, Percy Jackson's powerful water powers can be depicted in various ways. Some might show him creating massive tidal waves to defend against powerful foes. For example, he could use his powers to flood an entire battlefield, leaving his enemies struggling to stay afloat while he and his allies remain in control. This showcases the sheer scale of his water - based abilities.
In Percy Jackson fanfiction, Zeus is often considered one of the most powerful gods. He is the king of the gods, controls the sky and lightning. His power is so great that it can shake the entire world when he's angry. Just think about the times in the original stories when he showed his might, and in fanfiction, that power is often amplified even more.
There could be original characters in Percy Jackson fanfiction that are considered the most powerful wizards. These characters might be created by fans with unique magical abilities such as the power to control time within the magical realm. They could have powers that combine different aspects of magic from various mythologies, making them extremely powerful in the context of the fan - created stories.
There could be a fanfiction where a character with ice powers is actually an enemy in the Percy Jackson world. They are trying to freeze over all the water sources, which would be a huge threat to the demigods. Percy and his friends have to figure out how to stop this ice - powered foe. They might discover that the only way is to find a way to combine fire and water powers in a unique way, like using the heat from Hephaestus - forged weapons along with Percy's water control to melt the ice and defeat the enemy.
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.
If we look at the character of Nico di Angelo from Percy Jackson, his ability to control the dead could be a game - changer when dealing with the vampires in The Originals. Vampires are technically undead, so Nico might be able to manipulate them to some extent. However, the witches in The Originals have their own magic to resist such things. And on the other side, characters like Elijah Mikaelson are very skilled fighters and diplomats. Their charm and combat skills could make them a formidable opponent against the Percy Jackson characters. In the end, it's all about the creativity of the fanfiction writer in determining who is the most powerful in these crossovers.