Sealing the Sword in a Dream

He looked at the experts closing in on him, his expression cold. Slowly, he held out his iron hand and tore away the chains wrapped around the demonic blade's hilt. In an instant, dark clouds gathered, lightning flashed and thunder roared. The wind howled, the rain surged, and the world fell into chaos.

So he was the one who had brought the dust-covered world to ruin.