The first reason Xue Shentian could borrow the superior treasure was because the "Immortal of Heaven" was his master. Secondly, it was because his master had two superior treasures!
The second point was the most crucial.
Xue Shentian's master obtained the second superior treasure by chance. Since it didn't match his cultivation base, he simply refined it and gave it to Xue Shentian.
It made Xue Shentian stand out among the Supreme True Immortals and let many immortals revere him.
Otherwise, the immortal races would slightly respect him because of his master.
Fang Jinyu's two attacks were fast. There were no mighty cultivation path battles, only a complete and unsolvable suppression. The situation feared those True Immortals.
It turned out that whether it was a True Immortal or a Supreme True Immortal who had a superior treasure, they couldn't even resist for a moment while facing Fang Jinyu's superior treasure.