This question is based on RAIDER OF THE TREASURE TROVE. The poetic device in the expression "Rage is chief" is ___

The poetic device in the expression "Rage is chief" is a metaphor. A metaphor is a figure of speech that compares two unrelated things by stating that one thing is the other thing. In this case, the expression is comparing "rage" to a "chief". It is not saying that rage is like a chief or similar to a chief, but rather, it is asserting that rage is the chief or leader of something. To further illustrate, let's look at the definition of the word "chief". A chief is the leader or the head of a group or organization. By using the metaphorical language of "rage is chief", the phrase emphasizes that rage is in control or has dominance over something. Therefore, the poetic device used in the expression "Rage is chief" is a metaphor, as it uses figurative language to convey the idea that rage is the leader or the most powerful force.