Duanmu Yan utilized the Divine Brush to enhance his Gale Technique, but the effect did not last long, only about fifty breaths. Otherwise, his Life Force wouldn't be sufficient to sustain it. While the Cultivation Technique of a Soul Cultivator is unorthodox, it cannot control a completely destroyed body. Even the joy, happiness, heartache, and pain felt by the flesh are truly reflected onto his Primordial Spirit. However, as a Soul Cultivator, his endurance is far stronger than that of ordinary cultivators.
Even so, after being depleted twice by the Divine Brush, Duanmu Yan's body reached a state where it could no longer be sustained. Along the way, he almost consumed all the elixirs on him to stimulate the last bit of Life Force in his body.
Luckily, the pursuers behind him had been completely shaken off. Even if someone adept at tracking decided to follow the trail, it would still take a little while, right? For Yin Jiu You, this time was enough buffer.
