Evolution Confusion.

If a demon lord is lucky enough to pass the trial of the abyss then they will have to make a very important decision about their future. There are three crowns that they must select from. There is the crown of the king of the abyss, the king of demons, and finally the king of kings. Each one is heavier than the last. Their soul can shatter if the burden of the crown is too much to bear. 

They may be weak and tired after being subjected to mental torture but they must pick one. The decision is really between the first two kinds of crowns The third crown is too troublesome. The burden of the third crown will continue to increase as you add more crowns to it and you will be hunted for bearing it. It may be a crown that keeps giving but it will also continue to ask for payment from you.