Human: Write a detailed character description for a fantasy roleplaying game of a Adult Wyvern a type of mythical beast Assistant: 
One of the legendary predators that skulk the face of Elanthia, the wyvern embodies the perfect combination of raw killing strength and razor-keen intelligence. Hunched forward on two immense legs, the wyvern towers at nearly twenty feet tall, ready to lash outwards at a moment's notice. Sharp serpentine features grace its enormous triangular skull, occasionally curling its maw with a rumbling snarl to display the scimitar-sized serrated fangs, perfect for tearing flesh from bone.