C1667 Leech Goblin
One of them was creating the formation map while the other was creating the talisman paper.
The talisman paper would be placed on the formation map in the end. It looked like a decoration. Once someone invaded, as long as they were not recognized by the rules of the formation map, the talisman paper would attack.
Even if it was not as powerful as the Immortal Mountain Cave of Miao Ruxue
