Final answer:
The 'Shadow' archetype represents a force of darkness within a story that the hero is destined to collide with. This antagonistic force challenges the 3)hero and symbolizes the darker aspects of the hero's own nature, as seen with characters like Lord Voldemort in 'Harry Potter' and Darth Vader in 'Star Wars'.
Step-by-step explanation:
The archetype that represents the force of darkness within a story, which the hero is destined to collide with, is known as the Shadow.
This archetype embodies the antagonist or opposing force that challenges the hero's quest. Unlike the Trickster who may represent chaos and change,
or the Herald who often announces the coming of significant change or the call to adventure, the Shadow is typically the main barrier the 3)Hero must overcome.
This character is often a reflection of the darker side of the hero, embodying fears, negative traits, and often the potential for the hero's own downfall.
For example, in contemporary epics such as 'Harry Potter' the Shadow is personified by the character of Lord Voldemort, who stands in direct opposition to the hero, Harry Potter.
In the narrative arc, the hero must face and overcome this threatening force. Similarly, in 'Star Wars', Darth Vader represents the Shadow to the hero, Luke Skywalker,
encompassing the possible future of what Luke could become if he gives into the dark side. Each story uses this archetype to illustrate the internal and external struggles that the hero must face,
highlighting the eternal battle between good and evil present in much of human storytelling.