Gu Xuan channeled the green light from the willow sword into a bottle.
The small sprig inside the bottle started to twitch and wriggle, as if a person was struggling within.
Then, Gu Xuan quickly burnt a charm and chanted several spells, coalescing another green light on the willow sword with two fingertips, and directed it onto the small plant.
After three attempts, the struggling little plant continued to resist. Gu Xuan could no longer hold on, and he spat out a mouthful of blood.
Damn it! How dare it defy him this way! It had been under control for just a moment, only to break free again! He glowered at the plant, his eyes filled with shadow.
But now, he had depleted much of his magic power and couldn't do anything!
Transferring a soul required a substantial amount of magic power! Moreover, this soul had just been subdued and was hardly obedient. To suppress this defiance it would require even more magic power!