Nature
"... He will definitely try to enact his revenge since it seems that the king was aware of the kidnappings for a while," Seadir replied after thinking for a short time. "Still, this Joanis is a very cunning fellow… he might have more than a few tricks against us. While we took the prisoners, he should have enough anti magic substance for a war or two."
"He might also be able to make more by using the blood of other sea folk," Rain added. "He only kept them alive because it was more efficient… anyway, do you know why your blood can create such a thing?"
"... I didn't know until now, but in our family, we have a saying that we shouldn't shed our blood out of the ocean," Seadir said while furrowing his eyebrows. "I imagined that it was because our family decided to become pacifist after many wars, but I suppose that isn't the case. Still, this is odd since we aren't particularly good at receiving magic damage."