That's him. But one thing he said, I've always wondered about. In the middle of all the chaos, he said something like "so that's where you keep it." Then he attacked the ceiling of the Arena, with one of his strongest spells.
I'm wondering whether that would be worth looking into. He was a powerful mage, and the bracers weren't forced on us until afterward; it's possible that he sensed something, at that moment, that the rest of us didn't.