I use your deck Jangoo (the one at the top) with small modifications:
-1 mirror shield, -1 pulv
+1 steal, +1 morning glory, +1 amethyst pillar
(32 cards)
Everything except quantum tower, supernova & weapon unupgraded
I don't have a great win rate but it's fun beating the harder gods. I'd use a pulvy if I had one but morning glory works fine. I also go with -antimatter -liquid shadow +2 quantum towers but I'm undecided which is better. The steal seems useful but I'll probably swap for mirror shield. Still, it's the only defense I have against their nasty shields and has saved me before. I've tried 36 cards but that's no good, supernovas seem to come too slow & adding more isn't an option. *sigh* You're right Jangoo, this deck is definately hard to balance just right. Still, I'm doing great at killing FGs for a deck with only 8 upgrades. Much more fun to play than my old mono or rainbow, and that's what counts.
I've tested with fallen druid, doesn't help much at all (works great for lvl5 though), fallen elf is better, used defensively to slow them down while you get out the magic combo. I ditched them both though as they are too situational and your life quanta is limited. Maxwells demon was also a failure.
Devourers did work well though, and the devourer+butterfly effect combo works great especially for me with no pulvy and only steal for permanent control. They also bury until you are ready to quint and butterfly, and dark quanta always helps. Devourers are the only crittter that's worked so far. (I take 2 devourers+1 butterfly)
In the end though I ditched all these 'nonessential' cards in favour of just 1 antimatter, 1 liquid shadow and 1 steal. I still get rushed a fair bit, so perhaps 2-3 antimatters would be wiser.
I've tried a fifth tear and felt no real benefit. 4 is plenty. The quantum tower (or three) is essential though, it's like an extra supernova just spread out. Without it is definately worse, and yes even just one does make a difference. Perhaps aether towers would be better though as I'm often just waiting for some quinting quanta more than any other.
I don't know how much any of that helps anyone, but yeah I'm very happy with this deck, and it does worked unupped (except of course the supernovas). Thanks to all for your tests, this is by far my favourite deck still. I can't wait to actually upgrade it.