Its head is massive and it has some fangs. Its scales are light grey with some patterns of dark grey. Because of its weight its wings degenereted though it can stand and walk easily on two legs. It only walks with the normal pseudowyvern movements when it's running. Its tail is thorned and ends by thinnening. Its massive arm shields evolved from the wings. They give a great protection. With the thorns on the tail and the arm shields it can paralyze enemies. It's said it is one of the ancestors of the Brute Wyverns. In Rage Mode the dark grey patterns become shining white. The weakness is thunder, then earth. It feeds of wood.