King Aqua Chicken

When an Aqua Chicken fills with pure fluid, it puffs up and expands to a size inconceivable for a mollusk: getting hit by one would probably shatter every bone in your body. That it doesn't split apart despite its size makes it a natural wonder. A water hero soul that absorbs one of these gains incredible power, as if its entire body was suffused with holy water. Some even think it hails from some kind of long lost paradise...