(Disadvantaged) Lamenting Demon

Lore
Many of the failed creations were locked in a single jail cell and given no food to eat. Unable to bear their intense hunger, the demons grew violent and began resorting to cannibalism. The last demon standing was huge and hideous, having incorporated elements of the other failed creations into his form. Dragging his huge body along, he let out a roar of anguish as he searched for Irene.

Acquisition
?

Name origin
?