A Ten Refinement Sword was far superior to an ordinary weapon. Used well, it could kill an External Refining Expert. The better the weapon, the greater the threat.
A Ten Refinement Sword had the potential to kill an expert, but whether it succeeded depended on the swordsman's skill.
A child holding a sharp sword can kill an adult, but only if the adult fails to dodge. Under normal circumstances, it would be difficult to even injure them.
Such was the gap between Nurtured Strength and External Refining Copper Skin.
It wasn't that a kill was impossible, but the difference in power was substantial. For a person at the Nurtured Strength level to kill an External Refining Copper Skin expert, many conditions had to be met.
Of course, the same held true when a Nurtured Strength expert faced an ordinary person; they held a massive advantage.
