Like most spooky sets, Duskmourn: House of Horrors prominently features the graveyard and many decks will be able to get value out of the card they put in the graveyard, too
Ive heard some call it the green Shelly (Sheoldred, the Apocalypse) for formats like Standard and Modern and its not a perfect analog since Ouroboroid cant just solo people like Shelly can, and is worse against bolts but it does highlight something: letting this live for a turn or two can make life rough, even on its own
But a lot of fans, once they learned we were doing this collaboration, were like, What about Strixhaven Stadium as Blitzball stadium? People asked for this specifically, and I designed the original Strixhaven Stadium, too
whereas the opponent will have spentreally, misspentthe Cryptic Command, leaving him or her with no cards in hand
This Lulu is great, try her out and then let me know your thoughts