The Premise: You are a child of Poseidon, but your dominion over water extends to the fluids inside living organisms.The Unsettling Element: When you get angry, the water content in the air around you completely boils, but the campers' blood runs ice cold. You can hear the heartbeat of every person within a mile radius because you feel the rhythm of their pulse in your own veins. During combat, you don't use a sword; you simply gesture, and your enemies drop to their knees as the water is violently pulled from their eyes, mouths, and skin to form a floating, crimson sphere around your hand.