If throwing Balor's head down the world's biggest wishing well would supposedly get rid of the Leveller, then that would mean that the Leveller is bound to the still living head. But what about Mjarin? His head was still alive at the time of Balor. Did the Leveller leave his head? If so, how and why? If not, then Mjarin is still the Leveller while Balor is as well. How can this be?
Also, I don't know if this has been asked, but since Forrest knows the identity of the head as according to Bungie; does the Bungie and Mumbo Jumbo identities match?
Zandervix