Those Snow Wind demon beasts that inhaled the potion had their eyes turn red and went insane. They were constantly biting their companions and, in an instant, turned the whole area into a mess.
Bamboo was thrown at the horde from the hands of the Fighters. Within the bamboo was a poison that would cause the Snow Wind demon beasts to go crazy. After the Snow Wind demon beasts inhale it, they will enter into a berserk mode and attack their companions.