I Can Never Be Beaten to Death in the Rebirth of the Three Kingdoms

In the late Eastern Han Dynasty, banditry broke out... Chu Feng, who had traveled through time, was beaten violently by Niu Er first, and then met bandits. He unexpectedly awakened the magical anti-injury spike armor, which can be used in single fights or group fights. Anyway, all the damage will go to the enemy. Since I can't kill him, it depends on how I compete in the world.