Confused Leader
Fire Heart.
It is an elemental resource that is very rare. So rare to the point that even the vast territory the Dusk organization covered didn't produce one such resource.
Of course, there is a good reason for that.
The environmental factors needed for producing a Fire heart itself are very complicated, on top of that there should be some series of coincidences that should happen. From Sam's research, the only way for a Fire heart to appear as if a god decides to put one.
Once a fire heart appears in a region, the surrounding areas would be rich in fire elemental resources.
Spirit stones of fire elemental energy, Metals that have affinity with fire energy, herbs with fire energy. The flora and fauna in the surroundings will mutate. New species will soon emerge from that environment.
It is a very valuable resource.
But its greatest benefit comes out when it was processed and utilized properly.