I made the following deck against fake gods, and I won 9/35 until now. I think it is very effective for beginners, who don't have electrum and rare cards. To tell you the truth, there are 5 upgraded cards in it, although I don't think they are cruical to be upgraded, I just get them by the time I started to note down the outcomes, so I feature them in the deck to be accurate. I think the most useful from the upgraded card is the supernova, the others are almost make no difference.
The deck is based on neurotoxin.
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4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 52p 52p 55q 55q 55q 55q 55v 5c2 5rl 5rl 5rp 5rp 5rp 5rp 5rp 5rp 5rt 5rt 5rt 5rt 5rt 5rt 5up 5up 5up 61t 61t 61t 61t 6qq 6u3 74a 74a 7t9 8ps
The main concept is to play out a dune scorpion with momentum early, and then just trying to survive. Have to be brave to play like this, and estimate well how many hit can you take at the start, before you hide behind sundials and dimension shields. It is important to not do this too soon, or you will run out of cover. You have to be very careful. Sundials not defend against weapons, but shields are useless against momentum and can be stolen. (sundials can be stolen too, but you only loose the possibility to draw a card) Explosions can be fatal, fortunately the AI prefers to destroy the 2 hourglasses first. When you play out your first momentum+scorpion, don't ruin it with a sundial. If you have superflous quanta, you can play out scorpions later. They increase the poison just a little, but encourage the AI to use cards against them.
some observations:
Elibnis: Relatively easy, because he don't use steal or explosion. It is important to steal his feral bonds, not his weapons. If you win, it is often with elemental mastery. Don't use the plagues too early, you might need them later.
Ferox: He is like Elibnis, just he is faster.
Fire queen: Harder like the previous ones, because her weapon is stronger (what remains in game, because you have to steal the feral bonds), and she has 1-2 fire lance which can cause problems at the end.
Eternal phoenix: Very fast, uses exposion and damage directly you with fire lances. Definitely hard.
Osiris: He don't use steal or explosion, and a little slow. He has some unstoppable, but you can survive by stole his eternity. Need to store up some life point against his catapults.
Akebono: Elite armagio+overdrive+unstoppable=if you out of sundials, you die. I never beat him with this deck.
Gemini: You can stole his phase shield which suit the strategy, but unfortunately he uses momentum. Sometimes he not put them to the dragons, then you can survive by plagues.
Decay: In order to have a narrow chance, you need to start with more pillar then usual because of his fractal+pest combo. At least, he doesn't do much damage in one turn, so it is possible to win even if you run out of quanta and you can't play your next shield out.
Paradox: He is very fast, but if you get good starting hand, nothing special. He didn't use steal or explosions.
Rainbow: The miracle can be a problem.
Morte: I didn't manage to beat him, he use deadly poison, and even if I am lucky and fast enough, he uses miracle and wait for me to die sooner.
Serket: Need to block him early, else he poisons the hell out of you with spiders.
Octane: Need to steal his unstable gases. He uses explosions and fire lances too. Pretty hard.
Hecate: I played with him twice. Maybe I didn't pay enough attention what was happening, but I think there is some kind of bug, because he can't be poisoned with neurotoxin. I hit him (not during the effect of sundial), and nothing happens. I don't understand.
I didn't play enough with the rest of them. Destiny and Neptune seemed relatively easy, but maybe I just got lucky.
The deck can be easily impoved, I just don't have eternity. And sorry for my english.