บท 160: Dual-elemental Overlord

At nine o'clock the next morning, Ning Shi received the A-level spiritual crystals delivered by the courier Xiao Li on time.

After Xiao Li left, Ning Shi closed the door and put the 20 A-level spiritual crystals into his game backpack.

[ Do you want to spend 10 A-level spiritual crystals to upgrade your transformation ability to Tier 9? Yes, no. ]

Ning Shi chose yes, and the 10 A-level spiritual crystals disappeared. Powerful energy instantly filled his body!

After the special ability circulated around his body twice, it gathered at the Core of Illusion beside his heart.

Within the Core of Illusion, a surge of blood-colored energy passed through the images of the Thunder-armored Ancient Dragon, the war insect, and the evil spirit assassin.

Ning Shi felt that the Thunder-armored Ancient Dragon's speed had become faster. Its skin slowly turned black, the same color as the war insect's skin.