The user is a paradoxical existence, either because they themselves are a paradox or exists because of a paradox in the space-time continuum, usually caused by traveling back in time and changing or causing the event that created someone, such as traveling back in time and introducing your father to your mother or becoming your own grandfather. They may damage the time-space continuum because they are an anomaly in it.
Stewie Griffin (Family Guy); Stewie Griffin was created by the universe to create the universe, then he went back in time to save Leonardo da Vinci; his ancestor, from Bertram. Failing to do so, he took the place of his ancestor and injected his DNA (non-sexually) into his girlfriend, thus becoming his own ancestor.
Philip J. Fry (Futurama) is his own grandfather and as such is a living paradox.
Reala's (Tales of Destiny II) existence is a complete paradox because the being that created her was erased from history, and yet she still exists.
Touta Konoe (UQ Holder) is unintentionally responsible for his own existence via a predestination paradox.
Alis Color's (Sunday without God) existence is a complete paradox, as he is physically dead, buried and at peace and yet he is still alive and walking around but he isn't undead.
Shido Itsuka (Date A Live) is a paradox human who has the power to seal Spirits.
Due to the power of the Time Ring he wears, Goku Black/Zamasu (Dragon Ball Super) continues to exist despite his past self's death at Beerus' hands.
Reverse-Flash (Injustice 2) continues to exist despite the fact that Superman's Regime killed his ancestor.
Due to multiple trips through time, Setsuna (Island) has no origin in either the past or future, leaving his existence a paradox that cannot be resolved.
After deconstructing himself at a molecular level and tying his being to the essence of Time and Space, Add (Elsword) became a paradox stuck in endless contradictions of Time and Space, existing independently from the natural progression of time.
Savitar (Arrowverse/The Flash) is an evil time remnant of Barry Allen/The Flash. Savitar lived in a time paradox where they fought over and over again.
Raziel (Legacy of Kain) is a walking paradox by lieu of having the Wraith Blade, his own future self, symbiotically bound to him; as a result, he is immune to fate and can trigger temporal paradoxes that can alter history.
Futurama S4E01 - Fry is his own Grandfather-2
Eleventh Doctor Meets The Tenth Doctor - The Day of the Doctor - Doctor Who
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