He knew Ye Mo had a lot of things so he attacked immediately. This place wasn't far from the shadow voice castle and if another Dao Essence Divine Emperor comes, he wouldn't be able to take all of Ye Mo's things for himself.
The black mist looked slow but it instantly crossed all space and completely bound Ye Mo's surroundings. Ye Mo barely released ice space.
After he was bound by this black mist, there was terror in Ye Mo's eyes. The demon Dao Essence Divine Emperor looked at Ye Mo in contempt. Ye Mo only had this little power and dared to test him? This was just the beginning of his god art. He didn't even use half of it and Ye Mo was scared. How were they supposed to fight?
Ye Mo's terror was fake but there was some shock inside. He knew this black mist wasn't some divine emperor domain but a true space god art. This was much more experienced than his space god art.