Once the Soul Flame of an Undead Creature disappears, it's as if they've lost their life and become utterly useless.
Being taken control of by someone else doesn't matter anymore.
Not only are the white paper men effective, but the red paper men also play a crucial role in the battles.
After binding the red paper men with the white ones, they possess the enemies.
Any damage suffered by the Undead Creatures controlled by the white paper men is reflected back onto the targets possessed by the red paper men.
This gave Fang Mu many new combat strategies.
Firstly, the Guardian Beasts from the Ghost System wouldn't get hurt in vain, as all the damages caused by the enemy's attack would be reflected back onto the target.
Secondly, in cases when an enemy's defense is too strong to be broken through, he could attack his own Undead Creatures to harm the enemy.
Fang Mu carefully counted the white paper men fluttering around Yan Yubanruo.