One of those is that this green, white, blue and black 4/4 has Flying, Vigilance, Deathtouch and Lifelink - but its mostly the other ability
Many Hardcore decks lose their focus and identity and become a mash of cards that you have to run in those colors or with that commander
This new list looks like there is much more reason to be doing it and seems to pack a lot more punch with a wide array of dangerous looking angles of attack.
Like most Magic: The Gathering cards, the value of Sarah's Wings depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Mystery Booster Playtest Cards 2021)
Of course, if youre just sacrificing a bunch of artifact tokens, so much the better