Well, for Captain America, it's the Super - Soldier Serum. It enhanced his body to the peak of human potential. His strength allows him to lift heavy objects like cars, his speed enables him to dodge bullets, and his endurance lets him keep fighting for long periods. Also, his unwavering will and leadership skills add to his overall power.
The Terminator can also be considered a kind of super soldier in fiction. It's a cybernetic organism with incredible strength, durability, and combat programming. It can withstand a great deal of damage and is highly efficient at hunting down its targets.
Thor's power comes from his godly heritage. He is the God of Thunder in the Norse mythology - inspired Marvel universe. His hammer Mjolnir is enchanted and gives him additional abilities like flight and the power to summon lightning. Hulk's power is based on his anger. The more enraged he gets, the stronger he becomes, and his body can adapt to take on more and more damage. Characters like Morgoth in Middle - earth were powerful due to their innate evil and their ability to command dark forces and corrupt others.
In fanfiction, Percy might be super powerful due to enhanced abilities given by the author. For example, he could have greater control over his powers like water manipulation. Maybe he can summon larger amounts of water or control it in more complex ways than in the original story.
The most powerful characters often have unique abilities or powers that set them apart. For example, Jean Grey as the Phoenix in X - Men has telepathic and telekinetic powers on a cosmic level. Her Phoenix Force gives her the power of creation and destruction, allowing her to reshape reality.
Some powerful witches in fiction are powerful because of their ability to tap into different sources of magic. For example, they might be able to draw power from nature, the elements, or even from the emotions of others. This versatility in power sources allows them to be more adaptable and thus more powerful in different situations.
The unique skills they possess. Hermione Granger's knowledge of magic is a huge part of her strength. She can use it to solve problems and defeat enemies. Another aspect is their leadership. Daenerys Targaryen led her armies and made difficult decisions. Their ability to inspire others also makes them remarkable. Captain Marvel is an inspiration for many young girls.
The idea of Percy being super powerful is appealing because it takes a character we already love and amps up his abilities. It allows for more exciting and intense storylines. For example, he could take on bigger and more dangerous foes, which creates high - stakes situations that keep readers on the edge of their seats.
The appeal lies in seeing a familiar character in a new light. We know Harry as a great wizard, but in these fanfictions, he's even more so. It's exciting.
In the case of Daenerys Targaryen, her power lies in her charisma that allows her to gain followers, her dragons which are a huge asset in battles, and her determination. She was sold into marriage as a young girl but she fought her way up and built her own power base. She's also not afraid to make tough decisions, which adds to her power in the cut - throat world of 'Game of Thrones'.
For starters, their extensive knowledge of magic. Take Gandalf for example. His centuries - old wisdom means he has studied countless spells and magical phenomena. This knowledge allows him to use magic in creative and effective ways. Also, their natural talent plays a role. The Scarlet Witch was born with her powers and that innate ability gives her an edge. Another factor is their connection to a greater power source. Aslan in 'Chronicles of Narnia' is connected to the magic that created Narnia itself, which makes his magic extremely potent.