|Shadow Hearts: Covenant|
Faithful watchdog of the false god. Aeons ago, in service to his master, he rebelled against the chief god, and was duly punished; the flesh stripped from his body. With a weakness to fresh water, it lives in the sea, savouring the pain that burns the body in salt water, every day.*
The Nuckelavee is a creature derived from Scottish Isle folklore.
It is described as a malignant sea-dwelling centaur-like creature, without skin, just bare muscle, with sickly yellow veins. It has two heads, as though it were riding the lower half of a horse.
The "horse" head has a single flaming eye, and a gaping maw for a mouth that could spew toxins. The "human" head had a pig-like snout, and a wide, whale-like mouth.
It could spread plague and disease where it trod, and wilt crops. It was vulnerable to fresh water, and could be evaded by escaping over a flowing (fresh water) river.