Born to Thyra, it is no wonder why Sverre turned out the way he is. Bitter and vengeful, he could quite simply be described as more sadistic than his mother. Combined with his lightning breath, Sverre has a paralytic substance in his saliva, which he uses to take down his prey. He is calm on the surface, but he can snap in an instant, and it is not a pretty sight when he gets angry. Being Thyra's son, he is far larger than the normal Stalker Wyvern, even being bigger than his father, Shang. Shang has tried to teach his son compassion, but with Thyra's influence growing up (when she was around), nothing quite helped.