- Joined
- Dec 13, 2009
- Messages
- 329
They feed off of negative emotions, much like what Xaldin was trying to do with Beast. He wanted Beast to have negative emotions so his heart would feed into darkness and turn into a heartless himself. Because of the existence of Heartless (thanks to Xehanort which happened a year later after the events of BbS), the Unversed became extinct because those who released negative emotions became Heartless rather than Unversed.