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"Cogito Ergo Sum (I think therefore I am)"
― Rene Descartes

The ability to decide if anyone or anything has the right to exist or not. Sub-Power of Existence Manipulation.

Also Called

  • Omniexistence Declaration
  • Reality Judgement
  • Ultimate Observer


The user can remove or add anything in existence through either acceptance or denial of the relative target. This allows them to alter reality on a whim, changing things around the world with pure simplicity and even with some precision.

The workings of the power itself is easy to explain as it comes down to simple "Yes or No" questions that of which have more than just figurative power behind them, being able to play around with existence, nonexistence, and those who reside in either. They are similar to an editor for the universe, removing metaphorical grammar mistakes and adding in relative metaphorical content.

That is not to say the power is not without limitations, however. Despite it being able to assign anyone and anything to either exist or not, it is not actually a form of manipulation. As stated before, it is purely assignment or placement of the desired target or subject in existence or nonexistence. Even with that flaw, however, a lot can be still accomplished with this power.



Other Applications




  • May be hard to control.
  • Without proper precautions, after effects maybe devastating (i.e removing a important concept).
  • Not a true manipulation of Existence or Nonexistence, but placing concepts, people, etc. in one or the other category.
  • Users of Conceptual Transcendence and Erasure Immunity are immune.

Known Users

See Also: Logic Bomb.

  • Yuri & Chelinka (Final Fantasy Crystal Chronicles: Ring of Fates)
  • Hajime Nagumo (From Common Job to Strongest In The World); via Concept Magic
  • Tommy Oblivion (Nightside)
  • Haruka Kaminogi (Noein: To Your Otherself)
  • Nameless One (Planescape: Torment)