What are the limits of permissible superpowers in fictional stories?

There is no objection to writing fictional stories to clarify meanings, illustrate ideas, and address real-life issues, as long as they do not involve forbidden lying. The permissibility of such stories is supported by the hadith: "Narrate from the Children of Israel," and what it contains regarding the allowance of listening to wondrous and strange tales, not as a proof, but with the intention of drawing parables and admonitions, and teaching courage. It is permissible to use characters with supernatural powers as long as it does not involve claiming characteristics of Lordship or divinity, or if it falls under magic and sorcery, or if it involves a resemblance between the Creator and the created, or anything that contradicts Islamic creed.