One of the easiest places to start is with All is Dust, but a case can also be made for now slotting Hibernation, Riptide, and Wash Out in as well
The stock list is filled with all these cute little synergies which add depth and complexity to the list -- cast two spells per turn, legendary creatures matter, tokens matter -- but Y'shtola is very clear on what she wants to be doing, and that's chaining together high mv noncreature spells, and this deck simply refuses to do that
The sets, save maybe Aetherdrift , were all well received
Mono-black decks might have fallen off a bit, but theres no mistaking the power that Gix can bring to the deck
I love any chance to get my hands on Tetsuya Nomura or Yoshitaka Amano art in any way I can and this will be no exception