Jason had multiple reasons to be eager to get his hands on the Abandoned Universe.
First of all, the Abandoned Universe was the universe with the highest number of planets among all five Universes!
The number of living beings in the Abandoned Universe was not the highest, but that was mostly due to the fact that the vast majority of planets in the Abandoned Universe had not awakened their planetary heart of cultivation yet.
This could be done artificially, but nobody bothered to do so as it required the energy of the universe itself.
It would be counter-effective to use up Origin energy without actually knowing if the results would be advantageous or detrimental.
However, that was just for ordinary existences, and not the case for Jason.
He didn't want to devour the Core of the Abandoned Universe, either!