Water Elementals are known as the Strigoi, similar to shapeshifters. They can be killed in the same way as a human or animal, and if they are killed in their animal form, they remain as an animal—this is to protect the secret of their existence. They are faster than the Cruor, though not as strong, and can go out in direct sunlight. Water Elementals can see auras, which is their way of detecting whether another supernatural is a threat.
The Universe intended the Strigoi to be hunters of the darker Cruor, but, unfortunately, this turned into more of a battle between the elemental races. You could call the Cruor and the Strigoi im-mortal enemies, though Strigoi are only immortal so long as they don’t shift. When they are born, they age the way a human would, but once they reach adulthood, they stop aging so long as they shift regularly. If they don’t shift for prolonged periods, they can age. This also makes them able to carry and birth children (so long as they don’t shift while pregnant).
The first chosen Strigoi were the first born male and female of tribes and early settlements across the world, dating back to 8000 BC. They first appeared in Franchthi Cave in Peloponnese. More yet appeared in Nevali Cori and Sagalassos in Turkey, and the settlements at Akure in Nigeria. Across the world—Øvre Eiker and Nedre Eiker in Buskerud, Norway; Ærø, Denmar; settlments in Sctotland, Anatolia, Jericho, and so on—new Strigois were being born, one male and one female for each tribe. Some discovered, some celebrated, some murdered.
Often these chosen Strigoi would feel a magnetic-ism toward each other. Together they would protect the tribe from Cruor and other dangers, and often they would fall in love, feeling only understood by one another, and would go one to have Strigoi children of their own. When the wars began, packs were formed, though some remained with their societies, hiding their true nature, in hope of living a mortal life. Their curse, however, was their children, even if born of a human counterpart, would be born as Strigoi as well.
In the modern day, Strigoi are no longer chosen. Their population has grown so much through propagation that there are more than needed to hunt the evil Cruor. Some embrace their heritage as hunters, while others have chosen a path closer to humanity.
Soon, however—if the world is to survive—everyone must resign to their true nature … and fight.