Rukanyr

This hideous creature vaguely resembles a scorpion with a single lidless eye and three bulbous pods with a circular rasping mouth in place of its pincers.

A dozen clawed arms grow from along its back and sides, lashing frantically at the air around it. Its tail is held over its head, ending in an enormous spiked ball.

They feed themselves on anything they can fit into their mouths, gaining nutrient from the rubble they leave in their wake as wellas corpses. They are immortal unless slain, capable of surviving for hundreds or thousands of years.