Purple Blood River Formation is Purple Mountain True Monarch's formation, named when he traps Wu Yong.
Wu Yong alone destroys an army of blood beasts at blood tide pit. Tie Mian Shen and Qiao Zhi Cai watch from behind him. The surroundings then turn purple, distance becomes hard to judge, and the destroyed beasts gather into a blood river under a rain of purple thoughts. Tie Mian Shen cannot tell whether the space is an immortal battlefield killer move or a super Gu formation. Wu Yong’s attacks split the river, but the split waters expand into two rivers as large as before. Purple Mountain True Monarch emerges from the blood river and names the formation. He tells Wu Yong that without the two rank eight Immortal Gu Wu Yong’s mother left, rank eight gentle wind Gu alone cannot break it. ch. 1341
Phantom effects
Qiao Zhi Cai shouts that the formation has phantom path effects, and that those effects will not end unless the ruin bat corpses are removed. Voice transmissions and wisdom path thought communication do not work inside. The ruin bat corpses melt in the blood river, and the melting speeds up when purple thoughts turn from solid to phantom. ch. 1344
Isolated duration
Wu Yong destroys the formation with Clear Jade Dripping Wind Tiny Bamboo Building. Once it is gone, the three immortals find that many days have passed. The formation has wisdom path, blood path, phantom path, and information path effects, and it also has time path methods that distort their sense of time. While it stood, they could not connect to treasure yellow heaven or to their clans. ch. 1355
Inheritance list
Purple Mountain True Monarch’s inheritance has four immortal Gu formations. Fang Yuan names purple blood river formation as the strongest of the four, and he lacks certain Immortal Gu needed to set any of them up. ch. 1405
Connections(10)
0 later connections are veiled.