Fusion
The only reason for Jason to stay calm was that there had yet to emerge a terrifying beast at the 2nd threshold of the Prismar stage from the other side.
If that were to occur, he couldn't even be sure what would happen to the entire planet.
There were three overlords with the exact same cultivation base on Argos, but who could say whether the emerging beast had manifested only one rotating crystal or more?
In the end, there would only be a total of three rotating crystals at the 2nd threshold of the Prismar stage, and every single one of them indicated a tremendous difference in one's combat prowess.
A single beast could be enough to defeat all three Overlords as easily as they had ended the entire Great Argos war, without any effort!
This would certainly be devastating, but as long as nothing emerged from the said world bridge, Jason decided to not mind it.