This is incredible.
Winrate is probably pretty low, but nevertheless, a FG OTK is very hard to pull off.
PS: You can use upped Dials now. The ability still costs only 1 . It may screw up auto-mulligan, but it's preference mostly. Could help vs. quanta-denial gods and Discord. Plus: It does not require a Supernova to play and stop the attacks.
Like you said, upped Dials mess up the mulligan. I tried those at first but kept not drawing any Pendulums and then having to discard which is very bad for this deck since you need every card basically. But you're right, it's very nice when you haven't drawn a SN to be able to just throw one out to buy you some time.
I think precog > sundIal in this case. Otherwise solid build
Dragoon.
Nah. You need Sundials to stop attacks. Plus, Sundials are just delayed Precogs with stalling.
You can also turn the unupped deck into an OTK deck with just 3 upgrades: 1 Light Dragon, and 2 Rage Elixirs.
Here are the gods that I would guess would be beatable:
Chaos Lord (sometimes, depending on mutations and if he draws any of his 4 PC cards)
Destiny (usually, depending on mutations and Fate Eggs)
Elidnis
Ferox
Fire Queen
Incarnate
Miracle
Morte (as long as he doesn't do a crazy amount of poison early)
Neptune
Paradox
Scorpio (as long as he doesn't do a crazy amount of poison early)
Seism (depends on if you can get enough Aether quanta; can't use hasten much)
So 12 out of 24 are possible I think. Not too bad for a fairly quick and straight-forward deck.