Ryuga

Ryuga Kaiser Jr., commonly referred to as, Lord Ryuga, Ryuga, or Kaiser is a major antagonist, eventually an unsteady ally and antihero in the anime, Spirit Chi Warriors!. Ryuga is the son and reincarnation of the Demon King, Ryuga Sr. He is known as a world-class murderer and conqueror, as he has been roaming earth, taking over and ravaging the lands in accordance to his father's dreams. Ryuga's manipulation over earth allows him to literally bend the fabric of the atmosphere of the earth and other planets. As the main antagonist of the Battle Testimony arc, Ryuga was in possession of one of the three Legendary Ancient Beast Gods, and serves as a foil and rival to series protagonist, Yugi Typhoon, as well as a mysterious threat to Kai Szasazu. Ryuga's shady alliance with the almighty Ra is directly connected to his mother being slaughtered, as well as Ra manipulating Ryuga, manifesting his fears and inner turmoil within his mind. Due to this, Ryuga adopts another spirit within his heart, representing his darker, and more carnage side. All of this results in Ryuga's greater desire to kill Yugi, and get back at Ra for what he did. Ryuga's closest allies include Drago Kaiser, his guardian and caretaker, Crest Hollows, his loyal minister, who obeys his every command, and Lugia Hydra, an enemy who Ryuga takes a liking to once Lugia rebels against Ra. Ryuga is one of three beholders of the three Legendary Spirit Beasts to have ruled over the earth, having the Spirit Beast Rock Bison, as well as possessing the Ancient Beast God, Berserker, the Relentless. Ryuga is apart of a Demonic Race filled with bloodthirsty humanoids who have spawned their own life, in search  of a home to conquer. He is the current leader of the Rare Hunters after his father's death at the hands of Yugi.