He didn't choose to act today at random, but because today there was wind and rain, unexpected weather.
Of course, in his eyes, unexpected weather was predictable phenomenon.
With the right time and place, plus the transformation water, the Taiyin Cold Pond Array was complete.
Cold air permeated the area, and within the Great Array, tiny spots of cold light appeared, which were not frost or snow, but crystals condensed from the Taiyin cold air.
These fine crystals of cold air drifted in the heavens and earth, spreading over the great river.
The river water became calm, no longer constantly flowing, as if the whole river had frozen, but in truth, it had not; outside the Great Array, the surging river still flowed continuously.
However, on the other side of the Great Array, within the mountain stream, the river was drying up.
The Great Array cut off the great river, devouring the river water like a giant beast, more accurately devouring the water vapor within the water vein.
