Auto include in this deck
Snow White could be great in a deck filled with Seven Dwarfs, but the average Rise of the Floodborn booster contains approximately 0.5 Seven Dwarfs, which means that a typical Sealed Deck only has three of them
Although the Human tokens created by the triggered ability are attacking, they were never declared as attacking creatures (for the purposes of abilities that trigger whenever a creature attacks, for example)
Enlightened Tutor may get you an enchantment or artifact for a single mana, but you lose a card (the tutor), and you still need to cast said enchantment or artifact
Then you can draw when they flip over
In the last 18 months or so the only play this has seen is in artifact heavy RDW builds using Shrapnel Blast and then it is much more for being a cheap playable artifact than the effect it brings