one stupid thing, your deck depends on pharoah and eternity. you will lose each time they came too late inplay and there is the possibility that they are in the last card. pout almost this card twice.
You got three buckler, your protection should come from scarab, not from shield. shield should be use only to deal with untargetable creature (or redirecting spell ) I suggest you remove permafrost ( or jade shield for it is the most expensive and there is very few FG using direct damage)
I don't think this deck depends on Pharoah and Eternity -- it actually depends on a good Shield and Aflatoxin. I do not think the protection should come from Scarabs. I am not using the Pharoah+Scarab as an analog for Otyughs. You simply can't get the Scarabs out fast enough with a 30 card deck to even attempt to emulate that strategy. Instead, I am treating the Pharoah+Scarab like a Firefly Queen+Fire fly combination and plan to have have the Pharoah come after the Mind Flayer(s) establish control of the board.
For my play style, I find that Permafrost Shields (and Jade Shields for FGs with permanent control) work best. With 6 SuperNovas and Quantum Towers, in a 34 card deck, I find that they are not too expensive to get out.