Board Thread:General Discussion/@comment-27984457-20160922193051/@comment-26173470-20160923200428

Mabian wrote:

And the Barrier is stated to have been created by the 7 most powerful human sorcerers. The need for the power of 7 human souls is meant to counteract the power that originally made the Barrier. please give link on any proves of this info.

And in any case Azgor could take souls of diyng people, to not make violence. (or Toriel coul go by herself. she also didn't, so I think - absorbing souls - hard thing, and only few could make it)