Board Thread:Mortal Kombat X/@comment-26339133-20150423204033/@comment-25561256-20150423211539

Raiden tells Bo' Rai Cho in the story that the revenants are bound by Quan Chi's magic and if they capture him, they can force Quan Chi to release the revenants from his control... As long as Quan Chi lives. They have this conversation in the Jinsei Chamber right after Scorpion decapitates Quan Chi and Shinnok comes out of the amulet. Of course there could always be more to the story that isn't blatantly obvious, but as far as what we do know for fact from the story, Quan Chi's magic is needed to break the spell of the revenants, no?