Character Idea Bios

Across the multiverse exists a mysterious archive containing the powers, abilities, skills, classes, spells, bloodlines, and stat sheets of countless worlds. Heroes, villains, gods, monsters, and legends can temporarily access these records and test powers that never belonged to them. A shield hero may wield cosmic authority. A superhero may inherit ancient magecraft. A king may borrow the abilities of a demon lord. A warrior may awaken powers from a completely different reality. Every experiment asks the same question: "What happens when a character gains a power that was never meant for them?" The answer may reveal new strengths, hidden flaws, or evolutions beyond anything their original world could have imagined. P.S. please give me any interesting abilities or give me some character ideas I don't mind