The Dracoknight

From the introduction: A class of partnership and draconic might. ... A tiefling sits atop a massive silver dragon, its twinkling scales radiating light onto his skin as he stares down an opposing army. With the tiefling’s cry echoed by a bugling roar, the dragon launches into the air, quickly spirals, and begins soaring parallel to the ground. As they speed over their enemies, the dragon unleashes a blizzard from its mouth, decimating the enemy force.