Han Muye nodded and took a step back, looking down at Yu Changdao below.
Yu Changdao stepped onto the stone platform and summoned a Battle Puppet.
It was a level five Battle Puppet. It was covered in golden armor and exuded agility.
He raised his hand and patted the Battle Puppet's shoulder. Its body trembled, and a crack appeared on the armor on its back.
A black square box with a circumference of half a foot emerged from it.
Compared to the Battle Puppet driving core crafted by Han Muye, this box was noticeably rougher.
Yu Changdao reached out and picked up the Battle Puppet core that Han Muye had refined and placed it on the long table. He rubbed it in his palm, then took out a green-gold crystal the size of a finger and placed it in the groove of the Battle Puppet core.
This was an origin stone, a mid-level one, capable of powering Battle Puppets up to level seven.
For level seven and above, advanced origin stones were needed.
