Sara's mother thought he'd do something super complicated, yet all he did was just normally placing materials in the ground, the same way any other formation would be laid.
She missed a hidden move from him. When he placed his hands in the holes he dug, he released his spirit power profusely, to link this hole with materials in other holes he dug.
If anyone looked using special technique at spirit power at the region of the formation, he'd be surprised to see a complicated spiderweb design down there, buried deep underground.
This formation wasn't easy to lay down, wasn't easy to grasp and learn. And that was why William was calm about using it right now, without worrying for anyone to peek and learn its secrets.
"Ready," after finishing laying the formation, William rubbed his hands, "are you prepared to get beaten like hell?"
