C1941 Calculating
That person was naturally Yang Ann, and this formation was given to Hee Zhantian by Yang Ann.
Because Hee Zhantian had a very high attainment in the Profound Yin Array, he learned these things very quickly. Yang Ann only said it twice before he understood.
Knowing that this array needed to kill a lot of people to form, Hee Zhantian did so without hesitation.
Therefore