The first batch of Ghost Dragon Knights that Du You produced, he had sent them all directly to the front lines. His own forces were strong there, but after the last battle, they had attracted the attention of the Demons.
If he didn't reinforce his strength, he was very likely to be ambushed. Even with reinforcements, as long as he didn't go too far, it wouldn't be a problem. After all, it isn't easy for the Abyss to send some high-tier Demons.
There were quite a few tier five Demons, but tier six was much scarcer.
Meanwhile, Du You also discovered that the Ghost Guards could control not only armor. Since he had sent the Ghost Guards to the battlefield as well, actual combat was the best method to test a branch of the armed forces' combat strength.
Of course, Du You still wanted to utilize some of the Demons' armor to offset his own expenditures.
