When a cultivator of External Refining Copper Skin circulates their Power, their skin grows incredibly tough and changes color. Their resistance to blows increases dramatically, and ordinary weapons can barely harm them.
Although the first layer of External Refining Copper Skin—Bronze Skin—does not grant complete immunity to blades, an ordinary weapon would struggle to inflict a deep wound. At most, it might leave a small cut or a shallow scratch.
After breaking through to the External Refining Copper Skin Realm, one's physical strength increases massively, far surpassing someone who has only reached Great Success in their Power. Their overall capabilities are on a completely different level.
