Chapter 837: Fourth Layer of Tongxuan Realm

The Three-legged Demon Bull was preparing its massive attack, and the demonic power fermenting within its four horns was incredibly wild, posing a slight threat to Su Chengyu. Refusing to be negligent, Su Chengyu levitated into the sky, pointing his longsword towards the heavens, with bolts of lightning flashing in his eyes as he chanted an incantation.

"Nature's spiritual energy of heaven and earth, dragon and tiger clash, endless heavenly thunder, heed my command!"

Over Su Chengyu's head, dark clouds tumbled as a thick bolt of lightning descended. His body bathed in the majesty of the thunder, he swung the Dragon Slayer Sword, merging the True Way of Controlling Thunder with Sword Qi, bringing down might from the heavens, the thunder force immense.