Self-Sustenance

==Summary==
Self-Sustenance is the ability to maintain oneself indefinitely without the typical metabolic requirements of life.
The exact nature and functionality of this ability may vary greatly, and for certain types of creatures this may simply be a normal aspect of their being - for example, the undead generally do not require oxygen. Beings that are incorporeal or possess a similar natural ability would typically get this power by default.
==Types==
*Type 1: Respiratory Self-Sustenance: The ability to live indefinitely without oxygen, or an equivalent necessary for an individual's cellular respiration. This includes surviving in the vacuum of space or in the depths of an ocean. This may provide resistance to certain gas-based toxins. Not to be confused with Non-Standard Breathing, in which a character still needs to breathe but can do so in conditions other than Earth's regular atmosphere.
*Type 2: Nutritional Self-Sustenance: The ability to survive indefinitely without food or water, or an equivalent necessary to fulfil nutritional and solvent roles in an individual's body. This may provide resistance to poisons.
*Type 3: Restful Self-Sustenance: The ability to continue acting forever without rest or need for sleep. The users of this ability require no rest and do not run out of energy, or even feel tired. This ability denotes practically infinite stamina and may support a resistance to certain types of Sleep Manipulation. 
==Users==
*Superman (DC Comics)
*Iron Golem (Minecraft)
*Ainz Ooal Gown (Overlord)
*Judge Holden (Blood Meridian)
*King Ghidorah (MonsterVerse)
Category:Powers and Abilities