Noah soon understood that he couldn't go all-out during his tests. The cursed sword wasn't a weapon meant for daily use. It was a trump card that could force existences to unleash far more power than they wielded.
The foundation of the weapon's power was in its bloodlust. Its Master had to carry a similar feeling to wield the cursed sword, and their auras had to fuse during the attack to unleash blows that surpassed their level.
Noah had an enormous bloodlust. His life had been a constant battlefield, and he had never once held back from killing his opponents. His existence suited the weapon perfectly, but that was a disadvantage when he wanted to test its power.