Hippocampus (5e Creature)
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Large monstrosity, chaotic good
Amphibious. The hippocampus can breathe air and water.
Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.
The hippocampus is a creature with the head and forequarters of a horse and a tapering tail, not unlike that of a fish where the horse's back legs would be. Its body is covered in fine scales and it has a long fin where an ordinary horse would have its mane.
Swimming Mounts. Some aquatic humanoids "domesticate" hippocampi, though in truth they simply cooperate, as a hippocampus is as intelligent as the average humanoid. Hippocampi often aid shipwrecked sailors, having saved many a soul from drowning or being preyed upon by a shark or other aquatic predator.
Variant: Winged Hippocampi
Some hippocampi have wings. A winged hippocampus has a flying speed of 40 feet.