By the time he said "Merciless" everyone in the room has lost all control all over their body.
They couldn't even exclaim, "I can't control my body."
As they couldn't even move their tongue or breath!
Their bodies were under the command of Feng. He could do what he wished with them, and their bodies will follow unwillingly.
It's all because of the deadly magic Feng just cast!
[Dark Hex Magic] «Body control»
The people's in the surrounding, including Bugsy, were attached to his thoughts as if puppets attached to strings.
Every toxic human in the surrounding tried to communicate with the devil through their open eyes, tears and regret defining a pleading expression could be seen in their eyes.
They wanted to plead guilty or trade their soul to the devil so that he will let them at least breath. Three minutes without oxygen meant death, and thirty seconds has already ticked away.