User blog comment:Ariant/Yoth'Azj, the Faceless Horror/@comment-5514182-20130830041801/@comment-77287-20130830133410

Terrify is the same as Fear, but instead of running around randomly, the affected champion runs away from the source. So in this case, anyone facing Yoth'Azj would run away, and anyone with their back turned would run around aimlessly. The purpose of Maw of Madness is to create chaos by disrupting the enemy team's positioning. Front-liners will end up going to the back line, and back-liners will most likely be caught from the fear.