First mentioned and seen in Day 148.
Located in the Jadar Mountains.
It has dark, blackish-green Dragon scales and a particularly violent temperament. There are poisonous spines on its back and it has a tail with a very strong body.
To capture one of these creatures is difficult, even for an entire army. The strongest and leader of a flock of Jadar Wyverns is normally known as a Jadar Wyvern Leader, similar to the Black Wolf Leader and Black Wolves.
Jadar Wyvern Leader (Subspecies)
The strongest and leader of a flock of Jadar Wyverns.
Mentioned in Day 152. Its scales were used to make a thunder spear, that was one of the potential rewards for the Tournament of Heroes that occured on Days 156 and 157.