After Varrick had refused to work for Kuvira and destroyed his destructive invention, Kuvira ordered Baatar Jr. and Zhu Li to recreate the weapon and bring it to working order as soon as possible. For the workplace for the super weapon, an already existing reeducation facility was converted. The troops stationed there and the imprisoned people allowed for control and a cheap work force. After Kuvira's army cut down the vines from the banyan-grove tree in the Foggy Swamp to get into possession the spirit vines, the construction of the super weapon escalated greatly.