When ridden, a set of bit and bridle are placed on their head, and the rider sits on a mount on the wyvern's back. The wyverns of Moss are kept in large caves, which is why the Mossians have there fortresses near the mountains. The wyverns are allowed to fly free, but are trained to stay within a certain range of there caves and return when called. Wild wyverns are also common in Moss, and these should not be treated as docile or domestic ridding beast. Wild wyverns can be quite temperamental and violent.
Wyverns also live on Blue Dragon Island.
Below is an average Wyvern Dragon template. Actual dragons may very. 8DC Sea Serpents Sea serpents are the dragons of the ocean. It is unknown how many sea serpents there are, for the oceans are vast and uncharted. Few ships have meet with a sea serpent and returned.