The seventh and eighth Heavenly Thunders were overcome by Li Shiming after he activated the 'Thunder Body'.
The drawbacks of the 'Thunder Body' Secret Technique had very little effect on him.
He doesn't just have one brain, the brain affected is the one using the 'Thunder Body', while the other one hundred and ninety brains remain clear, making it impossible for him to be affected.
Before the final Heavenly Thunder descended, he finally unleashed his strongest power.
The reason Great Powers are the most terrifying cultivators is not because they can cast powerful spells and control the most potent spiritual treasures.
The strength of a Great Power lies in controlling everything within the Grotto Heaven and mobilizing its energy.
