Originally, this Wuliu Mountain was a Rank-3 Spirit Vein, but in order to sustain the precious medicinal herbs that Yue Zutao painstakingly transplanted from Mountain Shaker Peak, he dispersed the Spiritual Energy of the Spirit Vein to fertilize the Spirit Fields. As a result, the highest level of the Spirit Vein on the top of the mountain is now only Rank-2 high-grade.
For Foundation Establishment cultivators, a Rank-2 Spirit Vein just about suffices to maintain their cultivation progress.
Moreover, in this war, they had also captured quite a few magic bags from the cultivators of Mountain Shaker Peak and gained a lot of Spirit Stones. Even in situations where the Spiritual Energy was insufficient, using a few more Spirit Stones for their cultivation was not much different than a Rank-3 Spirit Vein.