An earth human knight absorbed an element crystal when he fought a shadow demon knight in its 9 change realm. This was insane in the eyes of any knight. However, Zhang Tie was rational as he did all this fluently. Those who could see Zhang Tie's movements clearly had already realized that Zhang Tie was doing three tasks at the same time in the fight.
Many people might have seen someone doing two tasks at the same time; however, it was their first time to see someone doing three tasks at the same time.
Zhang Tie was doing three tasks at the same time: blocking strikes from the demon knight, manipulating the true object of the silver secret item; absorbing wind elements.
Zhang Tie spent 70% of his energy on defense, 30% on attack. He was stifled by the shadow iron-armored demon knight, but the latter couldn't hurt him at all; neither was Zhang Tie in a disadvantageous position.