History Main / OnePersonOnePower

* In ''Franchise/AvatarTheLastAirbender'', almost all superpowered individuals are either Firebenders, Waterbenders, Earthbenders, or Airbenders. Each type of bender can only bend their specific elements.[[note: aside from Spirits and the occasional being bonded with the spirit world, such as the titular Avatar.]] However, by the end, this is a DownplayedTrope due to the unexpected applications of each element. Waterbenders can learn to heal people, control ice, control plants, control mud, purify or corrupt spirits, and even control the [[AscendedFridgeHorror blood in people's veins.]] Earthbenders can sense vibrations, control metal, control mud, control sand, and even control lava. Firebenders can shoot and redirect lightning, or even channel chi through a third eye tattoo to fire explosive beams. Even airbenders can turn intangible like ghosts.

** Subverted in that Devil Fruits can have overlapping or alternative powers to each other, especially by getting quite strict with the definition of "one power". For example, the More-More Fruit makes things bigger and the Mini-Mini Fruit makes things smaller, but both fruits allow the user to revert a modified item to its former size. There is only one [[ElementalShapeshifter Logia]] of [[PlayingWithFire Fire]], but there are both "fire adjacent" Logias like [[MagmaMan Magma]] or [[SuperSmoke Smoke]], and plenty of heat or flame-manipulating Paramecias. There are entirely separate Logias for Cold and Snow. Both the Kilo-Kilo and the Ton-Ton fruits allow the user to temporarily increase their own weight, but while the latter is significantly stronger in this regard, the former also allows the user to temporarily decrease their own weight. Then there are the [[{{Animorphism}} Zoan]] Devil Fruits, which often have specific fruits for specific ''species'' of animal; the [[ScaledUp Snake-Snake Fruit]] has specific models for King Cobra and Anaconda, for example.

* ''WebAnimation/{{RWBY}}'': All living things have an [[{{Mana}} Aura]]. With training, they can strengthen their Aura and use it for a range of effects, such as [[SuperToughness preventing injury]] or [[HealingFactor healing injuries]] that do manage to be inflicted, or blocking strikes by [[BarrierWarrior projecting Aura]] like a forcefield. However, every single person possesses the ability to develop a Semblance, a manifestation of Aura that is unique to every individual. Among the main characters; Ruby can manipulate her matter to spin herself and others in order to move swiftly as if she's only her hood, Weiss can create magical glyphs that perform a range of [[GeometricMagic faux-magical effects]], such as the ability to summon and command ice-versions of her fallen foes; Blake can create shadow-clones that take the blows meant for her; Yang can tank damage and [[CriticalStatusBuff convert it to deal increased damage back]] to her foes; Jaune has the ability to [[SuperEmpowering amplify everyone else's Aura]], increasing the effectiveness of their abilities; Nora can tank electricity to [[SuperStrength increase her strength]]; Pyrrha can [[MagnetismManipulation use magnetism]] to achieve a range of effects, from creating tornados of soda cans to winning battles by subtlely manipulating warriors' armour and weapons to ensure they lose fights without ever knowing why; and Ren can [[EmotionSuppression mask people's emotions]], making them invisible to the [[AnimalisticAbomination monstrous]] [[EmotionEater Creatures of Grimm]].
** Semblances can also evolve over time. Ruby can carry multiple people with her in her flight. Blake can create her clones using elemental Dust, Ren can literally see the emotions of others, even if they're skilled at hiding them.

** In-universe urban myths exist about Dual-Skill and Multi-Skill people, with a single (temporary) example of the latter appearing in ''Railgun''.

* ''Videogame/UnderNightInBirth'' has the EXS, a special power that every "In-Births"[[note]]People who encountered Void - monsters of the Hollow Night - and survived[[/note]] have. The effects of EXS ranges from SuperStrength, to flame manipulation, to soul ripping.

A setting where each of multiple characters has one, unique power. The power may occasionally have a name to refer to it (compare DifferentlyPoweredIndividuals). May be tied to a MassSuperEmpoweringEvent in the backstory, or connected to a MetaOrigin.

** Subverted in that Devil Fruits can have overlapping or alternative powers to each other, especially by getting quite strict with the definition of "one power". For example, the More-More Fruit makes things bigger and the Mini-Mini Fruit makes things smaller, but both fruits allow the user to revert a modified item to its former size. There is only one [[ElementalShapeshifter Logia]] of [[PlayingWithFire Fire]], but there are both "fire adjacent" Logias like [[MagmaMan Magma]] or [[SuperSmoke Smoke]], and plenty of heat or flame-manipulating Paramecias. There are entirely separate Logias for Cold and Snow. Then there are the [[{{Animorphism}} Zoan]] Devil Fruits, which often have specific fruits for specific ''species'' of animal; the [[ScaledUp Snake-Snake Fruit]] has specific models for King Cobra and Anaconda, for example.