Regeneration

Disclaimer
All of this info is taken from the main VS Battles Wikia. Please give the members of the wikia, especially the admins, the respect and credit they mostly deserve.

Summary
Regeneration or "regen" is a term given when a particular character can heal from wounds at an accelerated rate. Regeneration has different levels. The lowest levels of regeneration basically just increase your body's natural healing ability somewhat, so a wound that would normally take weeks to heal would take days or hours. More advanced forms of regeneration can regrow lost body parts, such as fingers, arms, legs. Even greater forms can regenerate after being decapitated or blown into pieces, and it goes up from there. It is also sometimes known as a "healing factor".

Regeneration levels/Tiers
Low: Faster healing ability for normal wounds

Example:

Mid - Low: Able to heal wounds that would normally leave large scars

Example:

High - Low: Able to regenerate some severed body parts like fingers, arms, legs

Example:

'''Low - Mid: Able to regenerate limbs/fatal wounds. Still die from decapitation'''

Example:

Mid: Able to regenerate from decapitation

Example:

High - Mid: Able to regenerate from being blown into pieces

Example:

Low - High: Able to regenerate from a puddle/drop of blood, or a small piece of your body

Example:

Mid - High: Able to regenerate from being vaporized/dust

Example:

High: Able to regenerate from a single molecule/atom/particle

Example:

Low - Godly: Able to regenerate as long as your disembodied consciousness exists/regenerate from other dimensions

Example:

Mid - Godly: Able to regenerate from nothing

Example:

High - Godly: Able to regenerate even if your existence is erased and the dimension/universe you're in is destroyed.

Example: