Once a mystic gem was destroyed or damaged, that would result in a horrible backlash for the mage enough to put them on the brink of death
"Master!" When Zero and the others saw their master that was sent flying with severe injuries, they were alarmed
All of them are completely loyal to Rezen and they don't want anything bad to happen to him
They were about to check on their master when Rezen suddenly stood up as if he wasn't on the brink of death earlier
Rezen's injury is enough to kill or at last maim him but he suddenly bounced back as if he didn't suffer the least bit of damage
His hideous injuries suddenly disappeared and he was safe and sound again
As for the enemies, not everyone was as lucky as him since they don't have his recovery pills
Of the thousands of magic beasts, only tens of them survive. What was left of them was scorched flesh that gave off a horrible stench of burnt meat