Nice looking deck! I agree mindgates and mutations make the uncertainty so much more exciting
I'm currently having fun with nymphs in my FG deck to shake things up a bit!
Couple of suggestions/ideas
My main worry is permanent control. If that pulverizer is near the end of the deck, you're fairly screwed versus a lot of gods. You can hope to mindgate one maybe, but then your mindgates would also be prone to destruction. I really want to have an eternity in all my decks but sadly pulverizer is just so much more convenient - Butterfly effect is the only possible alternative and often require a 3 card combo. I'd suggest 2 pulverizer and 1 eternity at least so you can switch to it at the end to avoid deckout.
Also, if you have a Jade Shield, you don't really need a Mirror Shield as well. I currently have 2 Permafrost and a Gravity Shield in my deck - many people underestimate the latter..
If you want some variation, Dusk Shield is also pretty nice and fits in with the random theme of not knowing what's gonna hit you or what you're gonna get to hit back with.
I also always have 3 quints in my deck as it can be difficult to find one early on - I see why you have the anubis to counter that, but you still need to quint him first and I'm not sure if your defense could last that long; an extra hourglass would probably be useful with 40 cards!
But yea, how's it working out for you so far? Looks like it might be quite fun.