Wyvern scales

It is not so easy to find a material that would be light and durable at the same time, and even to get it without remorse. But we were lucky. Wyverns have bred in the forests. Because of the corruption that has engulfed the earth, they have no natural enemies left, and therefore we, the keepers, have to intervene and reduce their livestock. Bring me the scales of the young wyverns.