Boom! Boom! Boom!
The purple-red lightning struck down one after another, hitting great-grandma's raised arm. The dense electric arcs lingered around her body, turning her into a bright purple-red. At the same time, it also spread along her body to the Black Dragon.
The Black Dragon let out a shrill and hoarse roar. Its long and thick body writhed like an earthworm, and its tightly-fitted scales cracked open under the continuous roasting and strikes of the lightning, revealing its tender red flesh. Then, it emitted a strong burning smell.
The extent of its writhing gradually weakened, and black and red blood flowed out of its mouth where its eyes and fangs intersected. Its breath also weakened.
It was only a lightning technique, but it was half-dead.
On the other side, li Xianyu felt an obvious pain in his waist, close to the pain of kidney failure. However, it was immediately restored by the self-healing ability.