I don't necessarily know if a similar deck has been made but the idea has been ringing with me and I want to try it once I have the cards fully upped.
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Basically: Elite Otys grow and eat everything, providing large bonewalls in the process. Unstoppable is there to buff them in case SoFo won't come out early and I want to ignore an annoying shield. Once Otys start eating Graveyard provides additional Oty food or things that can soften up the opponent. SoFo helps with eating annoying permanents (or quanta if it's necessary).
First and foremost obvious weakness are Poison rushes/Dials but hey, I'm open to any criticism and improvement suggestions (mostly on the quanta balance, I'm not sure if I should include more Grav Towers with Soul Catchers around). I made the deck for fun but if it beats anything reliably, we're all good, now are we?
Another thing I'm considering is a 2-off of Overdrive to turn large SoFos into a pretty CC-resistant clock.