Fang Bai and Gu Li, among others, decided after discussion to select a few thousand elite disciples from Green Bamboo Stronghold. Fang Bai would subject them to a month of intensive training, and once trained, launch a surprise attack on Swiftwind Valley, annihilating them with a lightning-fast assault.
This so-called intensive training essentially involved Fang Bai explaining Martial Dao to the selected elite disciples. And after they made a certain degree of progress in strength, he would impart to them a multi-person training Formation called "Heaven's Net."
The disciples of Green Bamboo Stronghold primarily cultivated Wood System Martial Arts, and the "Heaven's Net" Formation was a wondrous array based on Wood System Martial Arts that was both offensive and defensive and immensely powerful.
The "Heaven's Net" Formation was divided into a small array and a large array.