Formation technique.
Ling Han came to his senses at the first instant. This colorful ball was protected by a formation. If he were to use brute force to retrieve it, the only result would be that the colorful ball would explode. That would be equivalent to having fought for nothing.
He swept an eye over it, and saw that there were a few veined patterns glowing underneath the colourful ball. Instantly, multiple corresponding formation patterns appeared in his mind.
This was a very simple formation. Even if it wasn't a Formation Master, he could still easily break through it, because there were too many loopholes left behind.
In truth, it was meant for others to break through the formation, and its purpose was only to drag out the time, so that others could catch up to them and launch an attack.
However, to Ling Han, this formation was too simple.