Xia ruofei had placed a huge pile of spiritual stones at the core of the formation. If there was a shortage of energy, the spiritual energy in the spiritual stones would be absorbed by the formation.
Therefore, the spiritual stones were piled up into a small mountain at the core of the formation.
It was only a hundred spiritual stones, but the pile of spiritual stones in the shape of a small hill did not change at all. If Xia ruofei had not used his spiritual power to accurately sense the consumption of spiritual stones, there would not have been any change from the outside.
Hence, in order to save time, Xia ruofei increased the power of the formation when he was dealing with the six fish that had escaped the net.
These six star beasts were out of luck.
Previously, the black rays of light had only attacked one star Beast. After Xia ruofei made a hand seal, the black rays of light suddenly appeared in a dense formation and attacked the six intermediate star beasts.