Blood horse

A blood horse, also known as a blood pegasus, was a nightmarish equine that resembled a cross between a black horse and a dire bat.

They were often used as mounts by the sky mages of the Zhentarim.

Description
It had strong musculature that was covered in jet-black hair. A blood horse's ears were like those of a bat, it had flaring nostrils and sharp teeth. It had cloven hooves that more-closely resembled talons.

Combat
A blood horse used an ear-piercing screech to stun and partially deafen its prey. Once they weakened a creature, the blood horse would pin them down and drain their blood for consumption.

Ecology
As its name suggested, a blood feasted upon the blood of a recently-slain creature.

History
Historically, blood horses were originally created by another being and did not naturally appear on Toril. Their progenitor was a former Red Wizard of Thay that later joined the ranks of the Zhentarim.

As of the mid-14 century DR, a blood horse filly or colt was worth about 8,000 gp. The cost for rearing a foal was about one quarter that price.