As the Six Arms Scourge attacked, three weapons - two purple swords and a purple ax - swung simultaneously. Each swing of those weapons is supported by speed and strength beyond human reason.
If a knight or even an ordinary person fended off or even received those attacks directly, their bodies would be destroyed or split apart so easily, in a second!
As for, Vier - a young man once named The Mad Azure Dragon - he dodges those weapons flawlessly. He moved his body swiftly as the weapons were ten centimeters away from him.
The Six Arms Scourge's attacks were fast but Vier's movements were faster. It can be said that of all the people and Scourge on this battlefield, he was the fastest. And not only that, but he was also the strongest.