Distantly related to wyverns, amphipteres are equally cruel and prone to violence. Like wyverns, they have serpentine bodies and bat-like wings. Unlike wyverns, however, amphipteres must use the long claws on the tips of their wings to propel their bodies along as they awkwardly leap and soar a few feet off the ground. They're also longer and much leaner than wyverns, and instead of a wyvern's poisonous stinger, an amphiptere has a broad, arrow-shaped spur at the end of its long tail. Capable of piercing armor and shattering bone, an amphiptere's tail skewers prey much like a fisher might spear a fish. Amphipteres average 18 feet in length, though most of this length is the tail, and they weigh around 1,600 pounds.