Invincible (2001)

Watch Invincible: The Shadow Men are immortal beings of darkness and destruction. One such Shadow Man, Os (Zane), is confronted by the White Warrior, a being of light, and given the chance to change his ways or die. After the White Warrior bests Os in combat, she opens his heart to the power of love, and charges him to find the warriors who are the representation of the five elements and will save the world from the threat of the Shadow Men and their leader, Slate.