The real benefit of having these three cards in play is that you get to draw an impressive three cards whenever Huey quests
Galazeth Prismari is a four-mana Blue and Red dragon that gives all of your Artifacts the ability to tap for any color of mana that you can then spend on Instant or Sorcery cards
Notably, those decks don't even have to be dragon-based to get serious value from Two-Headed Hellkite, since any deck would benefit from having a huge flying beater that draws cards generously
Much like getting three damage for two mana, nobody is lining up to cast Shatter these days, but Abrade manages to make the choice between two medium deals exciting
Also, Djinns are tied thematically to wish granting, which wasn't quite what we wanted
Currently sitting around 90$+ for the non-foil/non-promo, I'd not be surprised to see her crack the 120$ mark, if not more, before a reprint hits