I suggest we use dice for the fight. It's gonna be kinda pointless if none of the Heroes do anything but block the attacks and parry a more experienced swordsman with ease.
For attacking, the dice you should have is d6, and it would be 4-6 in order to hit. For defense, the dice should also be d6, same with attacking, it must be 4-6. And for dodging, d6, must be 4-5.