Reinforcement from the Long Family

The form of an ability was fixed once the runes were arranged in a certain way. It could not be altered easily, or else the casted ability would collapse instantly.

But this rule did not apply to an S-tier. They had learned enough to master the way of rearranging the runes while maintaining the ability's power.

The sudden explosion would catch anyone by surprise.

Ayshan was even crazier than Z. No matter what, Z would spare Qin Feng's life because he wanted Qin Feng as his experimental subject. That was why Qin Feng could always get away from Z unscathed. 

In contrast, Ayshan only wanted Qin Feng dead. Despite his status as a prestigious S-tier, Ayshan was not shy from using such an unethical tactic.

It was a killing blow.

Qin Feng actually admired Ayshan's unsympathetic approach. He suffered greatly sustaining the explosion head-on.