Lin Yifei was using calmness to hide the astonishment in his heart!
The move he just made was a gamble of life and death!
Once he realized that seeing wasn't believing, he saw Judge of Fengdu's illusory and substantial attacks coming and immediately closed his eyes to use perception to judge the existence of Judge of Fengdu.
His eyes couldn't discern which phantom was Judge of Fengdu, but his senses could tell him where the most dangerous place was.
Having trained in the eternal dusk of the Labyrinth for years, he had long developed the ability to perceive with senses instead of sight.
He chose to stab at Judge of Fengdu's eyes.
His previous thrust had hit the opponent's arm and felt like stabbing into an iron plate. If once was severe, why worry about repetitions? He naturally wouldn't make the same mistake twice, knowing that the fiend before him defied reason, and on his second attempt, he chose to attack the commonly known weak points of the human body.