C3159 The Difficulty of the Heart Formation Divine Formula

Among them!

At the very front of the first formation diagram was written "Yellow Rank Heart Formation!"

At the very front of the second formation diagram was written "Profound Rank Heart Formation!"

After that was the Earth Rank Heart Array, heaven Rank Heart Array, and the last type of divine-grade Heart Array!

The further they lined up, the more complex and varied the structure of those