The difference between an Earth Demon and a Heaven Demon's endurance was clear to him. Thus, what he needed to do right now was to wait for Lawrend to run out of mana. He could keep throwing more Heaven Demon spells at him.
You might remember that a High Mage could only cast one or two High Mage spells, but that logic didn't apply to Heaven Demons or Heaven Mages. They could continue expanding their mana storage to the point where they could cast a dozen Heaven Demon/Mage spells.
"WAAAAAAAAAAAAAAA!!!"
"OOOOOOOHHHHHHHHH!!!"
By shouting as hard as they could, the two of them were able to release more mana to support their spells. Lawrend could feel his soul weakening as he continued on, but that didn't bother him.
He was still confident in victory. He was not done yet.
"I'm a God of my own world!" Lawrend shouted.
He controlled a tiny portion of the milky-white earth mana and threw it to his planet.
*BOOM!*
