Multiple personality is the ability which allows a character to have different personalities in their mind. This ability has a number of advantages and a number of disadvantages.
- Each personality can have skills that the other does not
- Having multiple personality would allow for a character to gain the other intelligence
- A defense to mental attacks, as if the main personality is under attack the other could take control and fight in the main ones place
- The personalities could fight over control of who's the main one, distracting them from the fight or disagreeing on the path to take