Merciless

Michael didn't show any mercy. 

He went all-out and shot across the arena like a cannonball, slicing off Niklas' sword arm with a single attack.

Michael was not only a Tier higher than Niklas, but he had multiple other means to enhance his strength further. Niklas's Tierless Artifacts and his 2-Star Martial Aura were not enough to keep up with Michael's speed, and strength.

He could only scream as Tigerfang's razor-sharp blade cut through his flesh, muscles, and bones. 

Michael hadn't expected Niklas to be defeated that easily. He stared at the pitiful figure of Niklas with disgust and shook his head.

"To think that I allowed someone like you to bully me in school," Michael mumbled in a voice loud enough only for Niklas to hear before he turned to the referee.