This looks really hard. The permanent control may be overkill. I'm not sure, but other than that, the Pandemonium looks a bit out of place, and I think FGs can't use shards. Everything else seems solid.
You mean creature control?
Anyways, wouldn't a quinted otyugh just destroy this deck?
No, I mean permanent control. The dune scorpion and rewinding is enough for a kill, the butterfly effect just wrecks everything else.
A quinted otyugh would not destroy the deck. It may eat a dune scorpion, but that doesn't matter once the poison is applied. Eating a scorpion will poison the otyugh, so it won't be able to grow enough to eat eternities, which have 8 health.
Yes, the AI will only play chaos seed on one creature. As long as that creature is a dune scorpion, one creature is all it takes. Multiple dune scorpions will stack on poison faster, but neurotoxin really does most of the work.