MidGard
I'm going to send a suggestion here since I don't know if you read the ones they send on discord The suggestion is that there is a stronger progenitor (I would like it to be the progenitor of space), he would enter the 4th stage of elemental manipulation (I think that's the name), where he would be able to use his element without elemental energy, an example would be sphinx being able to use all the sand of a planet without spending any energy and being able to beat any enemy of the same element, but he would be known for being patient and having many disappointments in his personal life, what I thought was he had different relationships with progenitor and in all his companions would die or abandon him. I would particularly like him to have an old relationship with sphinx and due to a series of events he enters felix's mind and says he will give his elemental manipulation in exchange for finding a way to save one of his ex girlfriends or help get rid of him. a problem that bothers you. Another thing I thought would be that due to his relationships with progenitor he was never with a non-parent, the reason there were beings with his element was that in one of his relationships he was abusive and forced him to impregnate beings to use their children as slaves, something that he would very much regret doing many things and tries to fix them in different ways that go wrong. He became the strongest as he spent billions of years training his manipulation and it messed up some of his relationships. He has a lot of trouble trusting others and does his best to make those he cares about happy, even at the cost of his own happiness. (Google translator)