Don't don't don't don't EVER (Okay, maybe there are some exceptions.) put Snovas into Grabbix.
Until you get to that point where you accumulate so much wealth you can upgrade cards like nothing, you should focus on fully upping your False God grinder.
So don't upgrade this deck, if you're going to, upgrade graboids then immolations.
But for now, I recommend massing your money so that, after you get enough rares, you can start off with a semi-upped FG grinder. And remember that RoL/Hope requires 6 upgraded cards bare minimum, so definitely don't dump your money into Grabbix if you're planning on using RoL/Hope.
Upgrading SNova's wouldn't be that bad in grabbix, but it would throw off a bit of the balance specially because that means you will need 2 novas, 2 immos, or 1 nova 1 immo (Plus the photons to power the immo's) to get the SNova out. That will make it so you get worst draws, but that also means that you can get out faster (And possibly immo a phoenix if you're on a tight spot, because SNova goes as 2 nova's.) The main problem would be with lycanthrope as it also uses entropy, but you can switch that for say, a forest spirit, or momentum even.
Yes, you won't upgrade all SNova's - that'd be wrong - so upgrading like only 2 would be alright. Not only that but SNova's are extremely useful (Speedbow, anyone?), both for, I dunno, AI3 grinding (if you want to.) and FG (Shak'ar or CCYB, for example.)
Side note : If he wanted to start FG grinding he could just go ahead and grab himself a Liquid Antimatter deck. Don't need upped cards for that. Or slowly upgrade CCYB as he goes.
Splitting the 4 novas into 2 snovas/novas does not make Grabbix faster. If you have enough entropy for a snova, you have enough quanta for everything except extra phoenix rebirths. That means that the snovas will be dead cards until you can use them, and when you can use them, you only get phoenix rebirths. It'd be much better to upgrade the immolations instead of the snovas because it's worth +2 more rebirths, not just +1 more, it works exactly the same as immolation, and he can build vng or second ball with cremations.
And sure, snovas are used for more deck types than cremations, but, unless he's completely sure he wants to drop everything until he gets a fully upped ccyb, then he should save his money for actually upgrading an FG deck so that his electrum flows enough for him to be able to fund speedbows, shak'ars, and ccyb (all decks that do not work well unless fully upped).
And yes, he could start now with LSAM and spend his money on making the best Arena grinder, but unupped LSAM nets comparatively less electrum than Perpetual Light or fully upped CCYB, and he doesn't have a fully upped FG grinder yet. Again, he can upgrade the 6 snovas in batch if he plans on going with CCYB, but he should never put any in Grabbix.
Thanks for all the advice, guys!
This leads me to few extra questions:
It seems I should probably now (or soon) choose between CCYB and Rol/Hope for my FG deck. I have no idea which is most fun to play.
- For CCYB - should I start with Sanctuaries instead of SoGs? I have no SoG's. And what should I replace 1 Pulverizer with - I only have 1. I could play Owl's Eye or Eternity for CC perhaps?
- For RoL/Hope - does it work unupped at all?
I could do the Liquid Antimatter deck. Is it more profitable to farm FGs with a low succes rate than it is to farm Elders or Bronze? Or is it just more fun?
On another note - I actually immo Phoenixes quite often to get another Phoenix on the board - not just in a tigt spot. As long as I have one 
when I immo, I know I will have two active on the board next round (given there is no cc from my opponent that round). Of course, if I draw a Photon right after that, I will have wasted one that I might need later. Same system applies when I am one quantum short of playing several creatures in my hand - I can immo the Phoenix, play the other creatures and get the Phoenix going again next round.
- But since I'm a newb that might be either common knowledge or just stupid.
Replace the pulverizer with a protect artifact, or just don't use CCYB until you get another one in Bronze special spins.
RoL/Hope does works relatively well with 6 upgrades (the RoLs). It obviously don't work completely unupped, since nothing powers the Hopes unless you add Fractal-clogging, hard-to-draw Luciferins.
FGs are not fun, they're extremely depressing to play against because you lose a lot. However, you can only spin upgraded cards in the slots, which sell for 1k each, so they're the best for electrum.
And about Liquid Antimatter, it does work, and you do make a profit, and I like it much better than unupped CCYB. I find it extremely underrated.
And, of course, I love RoL/Hope too and find that Perpetual Light is more efficient than CCYB with the same amount of upgrades, but it all comes down to opinion.
