I heard that Neo Ex-Death(that is the Void itself) can destroy the entire universe. Someone can confirm this?

And Forsaken Lover, normal Kuja cannot create the Black Mages without mist, and Super Trance Kuja cannot create Memoria and the chaoses without the Original Crystal. Okay, maybe he was capable of controlling the power of the Crystal because he is a powerful mage, but the fact is: He cannot create Memoria and the chaoses without it, meaning that the Crystal is a plot device and is NOT PART OF KUJA'S POWERS. If you put "Super Trance Kuja using the power of the Original Crystal", then yes, he is the most powerfull of them all, but if you put "Super Trance Kuja" he probably isn't.
Kuja using the Crystal was the same thing of him, using the Invincible. You will say now, that he can destroy entire cities just because he was capable of controlling it?
Kuja didn't absorb the Crystal, meaning that he is NOT capable of doing this things BY HIMSELF.