Black Wind Flag was a rare spatial type Divine Spirit Treasure.[1043] [1077]
It can block attacks that don’t have the power to tear through space. It is capable of summoning huge tornadoes and storms.[1043] [1044] It can also create a black hole.[1068]
Three Kunwu Masters used it to seal Sacred Ancestor Yuan Cha on Kunwu Mountain.[1021] Later, Devil Ancestor Yuan Cha detonated it.[1069] Han Li seized its remains.[1073]