The power to be or transform into a empty/hollow being. Variation of Defunct Physiology.

Also Called

  • Empty Mimicry/Physiology
  • Hollow Mimicry


User is or can transform into an empty/hollow being, meaning that their body is like an empty shell, having nothing inside of them including no organs, bones, muscles, tissues etc. Because they are completely empty inside, any power that would normally harm them in that way would have no effect.

They can maintain a solid form and move and interact with others, despite the fact they should have no way to do so.




  • Weak against users of powers that can fill their emptiness, such as Soul Creation.

Known Users

  • The Whisper Men (Doctor Who)
  • Xayide (The Neverending Story); formerly
  • Dusclops (Pokémon)
  • Registeel (Pokémon)
  • Shedinja (Pokémon)
  • Iron Maiden (Valkyrie Crusade)
  • Sundered Spirit (Valkyrie Crusade​)