Preparation leads to Trials and Trials overcome and the Hero grows from experience.
A vampire that is taught why taking victims and turning them into other vampires brings misery into the world is prepared. When the trial comes to take more victims and the vampire does not, he becomes the hero. The treasure of not bringing more misery into the world is profound. Thus the Vampire has grown from the experience, from a less memorable villain to a Hero.
Trials have potential to show where preparation is valuable. Trials have the potential to show unexpected events that nobody would have thought to prepare for. Trials show preparation coverage.
Preparation that is useful in Trials becomes Key Details worthy of Memory. If a wizard enchants a sword that helps the knight slay the dragon then the enchantment of the sword becomes memorable. The fight with the dragons memorable qualities are increased by unique details special to the preparation and fight. Not just any knight slaying a dragon, but a knight with an enchantment, a knight that knew he had a big task and relied upon the help, wisdom, and power of others to help him accomplish it. The knight less godlike makes him with more to lose, more human, more required to rely upon support, all of which make the knight more relatable.
Relate-ability matters, factors into Interesting, factors into Memorable, less godlike potential for more to lose on the line. Raising the stakes and peril around a hero we care about draws the audiences attention and focus, if the writer has inspired the audience to care about the hero through relatable dialogue and story dynamics the readers become more invested in the story heightening the experience and increasing potential for details remembered over the reader divesting from a story where they have little invested in the characters.
Dramatic Irony is useful, more useful when we care about the characters and the potential dangers that lurk ahead.
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