Nothing.
Nothing happened.
The wall of the Isolation Chamber had the same effect as Shang's hand, apparently.
That was when Shang got an idea and activated his Domain of Entropy.
The next moment, he willed the wall of his Isolation Chamber to turn into Neutral Mana.
The wall of the Isolation Chamber shook, but that was about it.
No Mana left the Isolation Chamber.
However, Shang's Domain of Entropy obviously had an effect. After all, if it wouldn't, the wall wouldn't have shaken.
On top of that, there was something else.
Shang walked away from the black sphere and summoned something.
It was one of the pieces of ore Shang owned for the King Realm.
Then, Shang willed the ore to turn into Neutral Mana.