In the Web Novel, when the Great Tomb of Nazarick was once invaded by players of YGGDRASIL, Ainz noted that half of the invaders from the last war fell victim to this World Item and died in combat because of it.
According to the author Maruyama, Momonga's name is attached to that World Item. The author went as far as to state that it is a top-notch “SECRET-OF-Momonga”
it is said to be sacrificed and only momonga knows its secret, could it have a more important power similar to cure elm power, also what are your views on this orb, it seems to be of great importance to the story. It was added to the series later, was it a gift from the rulers or did ainz create this orb himself? Does he have an irresistible power? If momonga dies, does ownership of the orb change? his power increases as he uses it, but he loses experience. is there a way to prevent this? can ainz gain level after losing experience? and finally, is this orb an item as valuable as a caloric stone? What are your predictions and opinions? Do you think that this sphere will be used in the later parts of the series?