He lunged at Omar, and tried to kill him. But Omar was not a fool, nor a corpse. He was a sorcerer, and a warrior. He had sensed Zhang's treachery, and prepared for his attack.

He dodged Zhang's dagger, and countered with a wicked blast of magic. This struck Zhang in the chest, and  sent him flying across the room. Omar said, 

"You are the fool, Zhang." 

A fool to betray me, and a fool to underestimate me. You have failed, Zhang. By the gods you have failed your master, and your own pitiful self.

"And now, you will pay!"