Minor xorns are about 3 feet tall and wide and weigh about 120 pounds. Average xorns are about 5 feet tall and wide, weighing about 600 pounds. Elder xorns are about 8 feet tall and wide and weigh about 9,000 pounds.
Xorns speak Common and Terran.
Xorns do not attack fleshly beings except to defend themselves or their property, since they cannot digest meat. Xorns are indifferent to creatures of the Material Plane—with the sole exception of anyone carrying a significant amount of precious metals or minerals, which xorns eat. They can smell food up to 20 feet away. A xorn can be quite aggressive when seeking food, especially on the Material Plane, where such sustenance is harder to find than it is on its native plane.
A xorn’s favorite mode of attack is to wait just beneath a stone surface until a foe comes within reach, then emerge suddenly. Groups of xorns often send one of their number to the surface to negotiate for food while the remainder position themselves for a surprise attack.