Although Divine Sense crisscrossed the battlefield, the powerful cultivators on both sides did not use it to directly injure or kill the low-level cultivators.
Because if one side did so, the powerful cultivators on the other side would immediately retaliate. That would still cause the great battle to erupt soon enough.
Moreover, the frontline battlefield was far too vast. Although Spirit Transformation or Void Refinement cultivators in the rear could probe the situation ahead, killing others from over ten thousand li away was already difficult.
Their Divine Sense had long been rapidly weakening due to the distance. If they attacked cultivators' physical bodies, then with their targets protected by spiritual power and magical treasures, while their own Divine Sense was weakening, killing them would not be easy.
If they attacked the Divine Sense of low-level cultivators instead, at most the targets would lose a strand of Divine Sense and suffer injuries. Yet they themselves would need to expend even more Divine Sense power, and killing minor cultivators held little meaning. The low-level cultivators on both sides were as numerous as the hairs on an ox...
Both sides were probing the frontline battlefield spanning tens of thousands of li, as well as certain locations where the opposing frontline army was stationed.
Of course, this applied to cultivators above the Spirit Transformation Realm. Restricted by their own strength, Golden Core Realm and Nascent Soul cultivators could only probe portions of the battlefield.
At the same time, even when the powerful cultivators on either side probed each other, they could only clearly see the situation on the frontline battlefield. The armies stationed on both sides were protected by grand formations, which Divine Sense simply could not penetrate.
Neither side made any attempt to conceal their probing of the frontline battlefield. As long as