C1490 Horror Hunting Array

Although Xu Liusu didn't have much knowledge on array formations, he had a heaven-defying BGU, which was the System.

The system could detect all the principles behind the formation. Lan Cexuan was only a sixth grade formation. Even among his peers, he was considered amazing. However, in the system's tests, a sixth grade formation was nothing to him!

He found a place to sit down