Abyssal drakes most closely resembled wyverns, with two legs, large bat-like wings, a serpentine neck, and a tail that ended in a stinger. Their scales were dark red due to their demonic heritage.

Deadlier Hunters. Abyssal drakes possessed the same fear-inducing aura of true dragons, as well as a breathe weapon in the form of 60‑foot-long (18‑meter) cone of unholy fire. They themselves were immune to damage caused by fire and magic that induced sleep or paralysis, and resistant to damage caused by acid and electricity; however, they were vulnerable to ice and cold. Additionally, the stinger on the end of the tail was venomous, making just as if not more deadly than their ancestors.

Death From Above. Abyssal drakes attacked by diving down towards their prospective prey, then strafing the area with their breathe weapon before picking off the scattered survivors. They attacked with the jaws, claws, and stinger; it must be noted that their claws lacked the dexterity to pick creatures up. 

Gone Terribly Wrong. The abyssal drake is the horrific result of an ancient breeding program that combines the nastiest elements of demons, wyverns, and red dragons. Originally intended to serve as mounts for mighty demon princes, abyssal drakes proved too unruly for such service. Now they roam the wilds of the Abyss, preying on demons and visitors alike. Abyssal drakes resemble their wyvern ancestors, but their dark red, scaled hides betray their fiendish heritage. They have powerful bat like wings, a serpentine neck, and razor sharp claws.

Unholy Flame. Do to it's mixture of red dragon and demonic blood, the abyssal drake, unlike it's non demonic ancestors, possessed a breath weapon that behave similar the spell flame strike, but tainted by the unholy evil and chaotic nature of the abyss.