Riverine

Riverine
More than mere waterway guardians, riverines are embodiments of particular rivers. These spirits of nature take shape to defend their waters and interact with those who travel along their currents. From the waist up, riverines have skin the color of the waters they protect but are otherwise humanlike in appearance. From the waist down, they can manifest either humanlike legs or churning gouts of water. A riverine's personality reflects the nature of the river it arises from—some are lethargic while others are wild and reckless.
A Riverine's Lair
Some riverines enjoy reverence akin to worship. Their likenesses are cast as statues and housed in temples, and worshipers act as agents between the river spirits and the people who revere them. These temples often become the home of the riverine itself, serving as its lair, though other nexuses of power along the river's path—such as its source or a significant waterfall—can also be used as lairs by a riverine.
A riverine encountered in its lair has a challenge rating of 13 (10,000 XP).