If we ever find my world, it stands to reason that visiting Leaguers might need hero aliases to avoid being immediately arrested as vigilantes. To that end, I've put together a list of theoretical Quirk explanations and hero names for some of my colleagues.
Erza Scarlett Armor Heroine: Scarlett Fury Quirk: Re-Equip - A form of teleportation that allows her to instantaneously switch between support equipment.
Daenarys Targaryn Fire-Proof Heroine: Stormborn Quirk: Heat Resistance - The ability to withstand high temperatures and fire.
Emily Kaldwin Regal Heroine: Shadow Empress Quirk: Nyctokinesis - The ability to manipulate shadows and to transform herself into a living shadow.
Hermione Granger Magic Heroine: Allura Quirk: Matter Manipulation - Through a wand-like focus, she can transmute matter.
Sam Fisher Stealth Hero: Echelon Quirk: Sneak - He can become imperceptible, but he can only activate this Quirk when no one is watching. (Sorry Sam, you don't have superpowers, so we'd have to play off you skills as being super-powered).
Doom Slayer Rage Hero: Doom Slayer Quirk: Enhanced Athleticism - He possesses enhanced speed, strength, and endurance. (DS, if you're reading this, know that I could not improve upon your name. "Doom Slayer" is already perfection when it comes to hero names).