Mainly because they used supreme treasures or secret techniques to maintain their strength above the Earth Immortal realm and could unleash wanton attacks at that level of power, which was somewhat terrifying.
Ye Ning could fight ninth-layer Earth Immortals, and even powerhouses like Xia Qing and Zhang Zhao were no match for him at the Earth Immortal Ninth Layer.
However, above the Earth Immortal realm lay an entirely different concept.
Chapter 408