Kotario
The species has to be able to utilize mana in a way where it does not enter their bodies since that is the rule of Gravitas, I personally would like to see an evolution based survival of the fittest continent where the strong get stronger by defeating and consuming their rivals then evolving to become better sort of like a beast kingdom and Darius rules since the strongest rules the kingdom and they all recognize Darius as the strongest, but that does not utilize the mana rules of Gravitas so idk.