I once played a fairy foxboy princess (male) in a one-on-one game, over half a decade ago. Their abilities included:

• An ability to clone the mind and soul of anyone, including themselves, ad infinitum, on a mass scale. These clones could selectively be linked together into a hivemind. They used this to repeatedly duplicate their own mind into a multitasking, omnipresent hivemind. They could also clone bodies and create new bodies, although this took a small expenditure of physical resources.
• Unrestricted access to the minds/souls of all creatures in existence, and the ability to edit those minds however well they pleased, ad infinitum, on a mass scale.
• The ability to copy skills, talents, knowledge, and magical/psionic/supernatural abilities across minds and souls, ad infinitum, on a mass scale.
• The ability to create world-sized, fully habitable mindscapes for bodiless minds and souls to inhabit, ad infinitum, on a mass scale.
• The ability to reverse the death of just about anyone, ad infinitum, on a mass scale.

By this point, my character was effectively so godlike that they could effectively create whatever sort of world(s) they pleased to create. They instead opted to create a reality-wide government and bureaucracy with themselves at the head, with a series of self-imposed rules to try to make things "fair" for everyone else in the inevitable transhumanist... utopia? Yes, "utopia," let us call it that. The largest restriction was against cloning minds and souls, because my character felt that it would not make for a balanced society if everyone could just clone themselves willy-nilly.

He also ended the campaign marrying his own sister, though fairies in this setting are not born conventionally, so sibling status is much murkier.