The life of a ruler was difficult. But the entire time Celestia, Luna and Twilight were there to help him govern their respective domains, Celestia aided Canterlot, Luna helped with Cloudsdale, and Twilight represented Ponyville.
Wayvern was in the middle of an audience with the Spirits of Harmony, the six mares who stood by the door at the Coronation. Suddenly he heard a voice echo throughout the chamber.
"KING OF EQUESTRIA! I HAVE COME FOR THEE!"
Everypony rushed outside to see a giant mass of shadow cover Canterlot. Wayvern recognized this voice, but he couldn't remember where he heard it before now. The Shadow formed a pillar that got more and more concentrated on the base on the balcony where Wayvern and the others stood. When the Darkness faded, a cloaked figure stood up from his crouched position, and he removed his hood to reveal a masque, spikey blond hair and soulless green eyes.
"Relies!"
"I SEE YOU'VE FINALLY FOUND YOUR WAY HOME… HUNTER!"
"I see you found me… Kaiju King." Everypony looked at Relies with fear, even Celestia. Wayvern didn't feel fear. What he felt was a reminder of the moment of Avalanche's death. He remembered now. It was Relies who killed Avalanche. What he felt was straight up hatred.
"I Summon the Blade of the Seven Lights and the Form to use its Power!" Wayvern was remembering things left and right today. His body changed shape with this phrase, he started to stand on his hind legs, and clothes started to cover his body. He started to become human.