In any battle that does not take place in a narrow corridor, all challenge can be removed by sidestepping left or right directly after you attack. The enemy will mirror this move a second or two after, and you can sidestep back to your original position before they can attack. When they sidestep to face you again, your attacks will have charged up again and you can repeat; the enemy will never get in a turn. This works on every enemy in the game, but it will only work when sidestepping - if you step backwards, the enemy will attack immediately once they catch up to you.