First, decide on the OC's power. Since it's omega level, it should be something extraordinary. For example, the power to create and control pocket dimensions. Then, think about their backstory. Maybe they grew up in a small town where their power was feared, which made them shy and reserved at first. Their personality can also be shaped by their experiences. If they had a mentor in the past, that could influence how they interact with Jean. For instance, if their mentor was strict, they might be very disciplined in their training with Jean.
In a fanfiction like this, perhaps Jean Grey discovers a new aspect of her powers that catapults her beyond the omega - level. She could then go on a journey to find others like her, mutants who have also transcended the normal power levels. Along the way, she meets new allies and enemies, all while trying to understand the true nature of her abilities.
One storyline could be that the OC omega level mutant meets Jean in a battle against a common enemy. They initially clash due to misunderstandings, but as they face the powerful foe, they realize they need to work together. The OC might have a unique power that complements Jean's telepathy and telekinesis, like the ability to manipulate time on a small scale. This could lead to some interesting moments where they use their combined powers to outwit the enemy.
Maybe Jean starts to have visions of a future that only she can prevent because of her unique powers. This could lead her on a quest to change the future. She would have to use her powers in ways she never thought possible before. Along this journey, she could learn more about the source of her powers and how to control them better. It would be a story of self - discovery as well as saving the world.
First, create a unique power set for your male OC. Since he's omega - level, it should be something extremely powerful and distinct. For example, the ability to manipulate time on a large scale. Then, develop his backstory. Maybe he was an outcast because of his powers and had to learn to control them alone.
One great male OC omega - level mutant fanfiction is 'The Ascent of Omega'. It has a really engaging plot where the male OC, with his omega - level powers, has to navigate a world full of mutants with different agendas. The character development is top - notch.
Often, original characters created by the fanfic authors themselves become popular. These are the ones with really unique omega level powers and interesting backstories. For example, a character who can control all forms of energy and has a tragic past of being experimented on by an evil organization.
Some oc omega level mutant fanfiction explores the idea of the mutant's moral compass. Since they are so powerful, they face different ethical dilemmas. For instance, if they have the power to read minds, should they use it to prevent crimes? But that would also be an invasion of privacy. This internal struggle between using their powers for good while respecting others' rights is a great concept that can be developed in these fanfictions.
Yes, in some fanfictions, Naruto can be depicted as an omega level mutant. Fanfiction allows for creative interpretations and crossovers, so it's possible to reimagine Naruto with such powers.
Perhaps the main antagonist is an ancient and powerful being that has been awakened by the OC's emergence. This being might see the OC as a disruption to the natural order and seek to return things to the way they were before the OC came into existence. It could have powers that are on par with or even greater than the OC's, leading to epic battles and a high - stakes struggle throughout the fanfiction.