The second day, the third day, the fourth day.
Every day, he watched without pause inside the main hall. The death toll was truly a terrifying figure; by the end, Li Su was almost numb to it.
The impact on his worldview was immense.
Yet what surprised him was that the further it went, the more terrifying the combat power displayed by the Celestial Immortals within became.
Of course, each day outside was equivalent to more than a month inside.
It was hardly strange for life-and-death battles that kept every nerve stretched taut to bring improvement.
An increase in combat power often involved many aspects.
One's own realm, Daoist arts and divine abilities, combat experience, the execution of divine abilities, and so on...
With life-and-death battles stretched out for such an unimaginably long time, it was hardly strange to see significant improvement. Do the same thing more than twenty thousand times, and anyone could reach an inhuman height.
But this great war was somewhat different.
Because improvement had limits.
Once one reached a certain point, further breakthroughs became extremely difficult.
Even Li Su, with his talent bonuses and extraordinarily high comprehension—even Saint-level cultivation techniques could be swiftly understood, mastered, and cultivated by him to an utterly terrifying level.
Yet once he reached a certain point, he would slow down, then fall into stagnation.
Unless his realm broke through and his comprehension of the Great Dao deepened, he would basically remain at a certain level without being able to charge any higher.
The thousand-year war was entirely different.
As time passed, some people's Daoist arts underwent astonishing transformations. The breadth of what they encompassed was beyond imagination, and the speed of their progress was simply unbelievable.
And this improvement was strange. It was not individual, but collective.
As long as one