Wyvern man

The wyvern man will fall from the next wyvern you see after you defeat all the infected wyverns. Sells:
 * Crimson wyvern
 * Hallow wyvern
 * Blood wyvern
 * Mechanical wyvern
 * Wyvern ball; 10 gold
 * Wyverang; 1 gold
 * Wyvern wings; 1 silver
 * Wyvern saddle; 50 silver