Chapter 500 Start of Summoning

Ordinarily, the most common method for summoning Catastrophe Level creatures involved conducting large-scale blood sacrifices.

Such practices, like the flow of Profane Blood, would be the preferred method.

Although the success rate was very low and it was easily thwarted by the Hunters Association, this indeed was the lowest cost method of summoning.

As for using Catastrophe-Level energy cores to summon Catastrophe-Level experts, almost no Secret Organization would employ such a luxurious method.

However, the Secret Organization 'Heart of Nature', to which Iyeta belonged, had no intention of conducting large-scale blood sacrifices.

Despite Iyeta's disdain for humans, being once allied with the Beast God, they ultimately couldn't bring themselves to slaughter humanity.

The most important thing was that a ritual filled with contaminated blood simply could not summon the minions of Heaven's Dominator.