Asmodian?

The magic circle that bound the group sucked all their mana dry. Once all their mana was gone, they are no longer rooted into the place. The first thing they did is to replenish their mana since the boss seems occupied at the moment.

The sound of bone cracking and reforming could be heard from the distance as the Mad Warlock's body is reforming. Even his body started to deform and suddenly reform. The pain that the Mad Warlock Cristobal experienced would make even an elephant die from shock.

The Mad Warlock Cristobal is laughing and screaming in pain at the same time. It seems that his mind is filled with the joy of reforming his body even though it is extremely painful. What the Mad Warlock did not know is that the will of a dark god planted on his mind also started to activate.

"AHHH!" The Mad Warlock Cristobal screamed out loud as his back split open.