Sometimes a deck catches my eye because of some subtle deviation from an established archetype, and others I see a card that I don’t normally see, or in an unusual quantity. My eyes definitely stopped on the 9th place list from the MOCS qualifier when I saw 4 Noxious Revival.
The four Visions of Beyond struck me, too, but I still haven’t entirely figured out those ones.
Noxious Revival does a couple cool things in this deck. For starters, it’s like having extra copies of your most important card in Pyromancer Ascension. If your opponent can’t stop you from setting up Ascension, then winning is pretty easy. If they can stop you, then Noxious Revival gives you another go. It’s also decent when you have Ascension in play, as you can rebuy a card that you have multiple copies of in your graveyard to turn the Ascension on. Manamorphose and twoNoxious Revivals can also go infinite under active Ascension with some cantrips.
Lastly, Noxious Revival buys you time in tandem with Cryptic Command. If you’re able to tap your opponents creatures and draw a card, then you’ll still be getting a card deeper in your deck despite fixing your draw step. I also imagine that you end up in some situations where you can even counter + draw and then just get your Cryptic back.