A few years ago, Suyass had been dispatched to the Gold Forest Plane's battlefield. He led a puppet legion and fought the Dark Elves, tempering himself for many years as he was getting closer and closer to the Archmage realm. Everyone was looking forward to Suyass' breakthrough, as that would add one more Archmage to the Mercury Tower.
But something huge happened in the Gold Forest Plane. An Abyssal Evil Dragon's corpse actually appeared before the forces of the Mercury Tower after one of the Seven Great Magic Cities of the plane, Somal, was conquered. That Abyssal Evil Dragon had been sealed in the underground area of the Gold Forest Plane, its huge body extending for over 500 kilometers, just like a mountain range, and it was connected to the Seven Great Magic Cities. What appeared before the mages of the Mercury Tower after claiming Somal was the head of the Dragon, and the aura that was leaking through the seal on it felt extremely violent.