I wanted to make a deck based around Gral, the Shark and Spirit of the Shark. So this deck eschews any "small" minions (that would make Gral less than a 5/5 when he ate them), even staples like Edwin VanCleef and Elven Minstrel. Besides beefy stats, it tries to use minions that have good Battlecry or Combo effects to double.
Then I needed a bunch of cheap spells, to survive the early game when you don't have minions and to trigger Combo effects. So then I thought, why not make this a Miracle build? So at the risk of losing originality, I put in two Gadgetzan Auctioneers.
Some may question the presence of Alexstrasza, especially since doubling her battlecry does nothing, but besides being a great target for Gral to eat, she's actually been a cult inclusion in Miracle Rogue for ages, championed particularly by Tarei.