Riyu
Riyu is a Mountain Dragon , a member of the ninja , and Master Rontu 's student. Distinguished from his tribe, Riyu stands out as a remarkable dragon due to his dragon energy . As he was still a baby dragon, Riyu's power gained the attention of Lord Ras , who had the Claws of Imperium capture him before he was rescued by Arin , a self-taught Spinjitzu prodigy, and Sora , an Elemental Masters whom he boosted her power of Technology , until all three were finally rescued by the Green Ninja Lloyd Garmadon , who then recruited them into the ninja. From there, Riyu would eventually master the art of Spinjitzu after Dragon Master Rontu took charge of his ninja training. .