Yeah, or how he can keep getting killed and looted.It certainly could explain the discrepancy between 5e Acererak as an "archlich" and pre-5e Acererak as a demilich. Perhaps they're echoes of each other rather than the same character.
They do mention that in 4e he became a god and you could fight his cultists rather him directly. But I agree that it seems like he has lost the status in the current 5e loreInteresting that they acknowledge his tenure as a Darklord (which tallies with an Easter egg in Klorr). Though not his brief conquest of Sigil (which was implied to be why 2E's Great Wheel-centered cosmology became the multi-cosmology of 3E), and their default assumption seems to be that he never actually achieved full godhood (which even arguably contradicts the 2014 PHB, where he's "god of secrets").
I mean, maybe those numbers are just confusion because countless Echoes of Vecna made their own copy and spread them around...Oh wait: I just realized, the Book of Vile Darkness IS Intelligent.
Well, I guess I'll go with the idea this IS the Book acting as an Avatar of Vecna. The fact the Book is "piloting" the body as a mecha suit just makes the idea even better. And there ARE Six perfect copies of the damned thing, eighteen fakes, and a bunch of imperfect, knock-off versions. So, the idea is even more double awesome is you run with the concept that this premium statue is one of the said Six copies!
Echoes? Nah, Vecna just gets around.....alot.I mean, maybe those numbers are just confusion because countless Echoes of Vecna made their own copy and spread them around...
So, there's a bonus follow-up: