It's a bit odd - but a cool way of implementing the feature
Some people really like to play discard decks and we felt like if thats the type of deck someone wants to make, it should be available
Amber decks will often run healers like Rapunzel Gifted with healing or Julieta Madrigal Excellent Cook to draw cards and heal simultaneously which complements Bolt well
Disney Lorcana cards each have types based on the origin of the character pictured, and their role in the story - these are varied but include descriptors such as Storyborn, Princess, Ally, and so on
Since the card acts unilaterally rather than choosing targets, the defensive Ward feature deployed by abilities like Protective Embrace holds no sway over Be Prepared's ability to wipe the slate clean
Indeed, while her Legenedary print is worth a fraction of what it was upon release, her Enchanted card has become the defining Lorcana chase card