Through the positioning of drone satellites over the two resource points of the great cultivators, Li Yuanba could track the movements of the two great cultivators from the Qianren Sect.
Of course, this relies on the premise that these two great cultivators won't hide their traces and outsmart the drone satellite surveillance.
In the cultivation world, concealment techniques can easily fool drone satellite surveillance. However, the concealment methods habitually used by cultivators are geared towards cultivation techniques, without precautions against technological means of surveillance.
Li Yuanba appeared twice outside the two great cultivator resource points, each time carefully controlling the distance. He would retreat only after alarming the great cultivators.
The advantage of doing so was to maintain pressure on the two great cultivator resource points, forcing the two great cultivators to temporarily remain in place.
