"Hey, Boss, do you know Sand Arrow?" Kyle asked.
"I know what it is, but I have never learned it," Theodor said. "I was responsible for resource acquisition and military research. It was my job to know about all of the techniques."
"What does it do?" Kyle asked. "I noticed that the others had a surprisingly easy time to get past the enemy's defenses."
"It mimics properties of Skysand," Theodor answered. "The arrow turns into sticky and corrosive sand. The sand sucks the Ether out of anything it touches and denatures it, eliminating its properties."
"It mimics Skysand?" Kyle repeated in surprise. "We have techniques that can do that?"
"You don't. The Kingdom does," Theodor answered. "How can you make a replica of fire if you don't know how fire works?"
"Ah, you mean nobody else can make a replica of Skysand since they don't know how Skysand works?" Kyle asked.