Final answer:
Edgar Allan Poe's allusion suggests that a character's actions are more extreme and dramatic than those of the biblical King Herod, known for his tyrannical deeds.
Step-by-step explanation:
The implication Poe makes in the allusion "the figure in question had out-Heroded Herod" is a reference to King Herod from the Bible, known for his tyrannical and violent actions, such as the ordering of the Massacre of the Innocents.
This phrase suggests that the figure has committed actions even more dramatic or overdone than Herod himself. It's an allusion that emphasizes extremity and a dramatic flair beyond what is typically associated with Herod's character in literature and history.