Tyrone only needed one slash of his scythe to win, while Radmilo needed more than that to defeat him. The difference in their weapons was quite significant. That was what made Tyrone more confident than before.
Moreover, the weapon Radmilo used was not that strong from his perspective. The dagger could only deliver poison. It did not take Tyrone to be on guard since he was resistant to poison.
Nonetheless...
Why did Tyrone feel pressed despite having a powerful weapon? Radmilo dominated the fight several times with just the dagger and shield. Even though he had caused significant damage to the shield, he was dissatisfied.
Tyrone wanted to beat Radmilo right away like he always did to his enemies. However, the mysterious man was on a different level, as if he already knew his fighting style. He also believed his opponent had undergone rigorous training.
"Can you copy something from someone else? Like their stats," Tyrone asked during the fight.