Within the Grotto Heaven, Su Yu unleashed a Sword Intent to directly block the strike from the Yin-Yang Mirror, then immediately activated the Great Divine Skill of Sky Splitting and slashed down, forcibly tearing open the Yin-Yang Millstone Formation set by the Yin-Yang Fiends.
"Not good!"
Lu Sheng was taken aback, and immediately communicated with the twelve Yin-Yang Fiends within, who swung great banners, raising a black light that formed a barrier to protect all the fiends.
This was a Tier Seven Yin-Yang Slaying Immortal Banner, which combined could set up the Yin-Yang Slaying Immortal Formation. When the Yin-Yang Millstone Formation was broken, this could come into play, buying at least some time.
However, at this moment, Su Yu had already condensed a blast of Innate Water Thunder. Accompanied by a deafening explosion, a violent cold surge erupted, instantly sweeping away all the defenses on the twenty-four Yin-Yang Fiends and Lu Sheng.
