I'm not sure I approve of the idea of scrapping anyone's system of organization, especially a general's...but I bid on you for your experience, and in a way it's my fault for not clarifying the purpose of that post, so I can accept it. However, there's a lot of things that need to be brought up.
Nymphcord has to have Gravity quanta, otherwise it's not Nymphcord. It's meant to be a DBH we can use with our own element, so Gravity quanta is the most important part of that deck. I think it's something we definitely want, but if we're putting it in, we need to do the whole thing at it's most powerful.
Antimatter is a very poor card to put in a Nymphcord. Demon is okay, but you're typically better off with more reliable damage. If you want a full Entropy duo on the side, I can accept that if we can make it work, but I would consider Nymphcord the more important deck here.
I can agree about the Death duo - for now, I'll remove the BWs from the vault. The Arses should stay for use in our Waterbow variants.
I don't like using Momentum as a splash, it's something I'd like having available for a rainbow, but there are so many ways to deal with shields that have other uses I don't want to build a deck around them. I'll leave this open for discussion, but card space is limited, and if we need to remove stuff, this will be one of the first things we lose.
I think an Earth duo is worthless without BB, but that makes it excellent, because it's cheap, it shuts creatures down for significant amounts of time, and it stops anything that comes out before Trident kills pillars. NTing Earth pends just isn't as fast. I would far prefer these over Momentum.
We have no real use for Life apart from taking Spirits in a rainbow - I don't find any Life duo to be useful in a mostly unupped metagame with this little vault space.
Fire domins are great and once we have that we only need a bit more to make a stall, so we'll certainly have Fire in the vault. I don't think we'll need 8 Steammies though, - I'll probably cut that down to 6 or 7.
Sanc stall is excellent. I like having Glories in there for damage if need be, and a few Holy Flashes are great against Death and Darkness, so we should bring those as well.
Skipping over Air because that's already good, RT is another card we can just take 6 of an splash into a deck that would otherwise be a mono. I feel we have better options, though, but I'll leave this open because it's still a viable option.
Our Darkness domin is set, so here's the last thing: Aether. It's pretty good for us, but just a couple things. For one, we're not going to need 12 Pends - I would say 10 is good. And remember, it doesn't need to be just Pends, we can add some Pillars in there as well. This does two things - makes quanta easier to regulate, and helps against EQ.
PU is an excellent card, it's worth giving us a whole new deck type with only 4 cards. Fractal is also excellent, having a couple copies enables us to OTK if need be via a dragontal and Ice Bolts.
If anything, I'd like to have 5 or 6 Dims, just for the best chance of being able to chain them. I'm not sure about Quints, but they're a good utility card, so 2 or 3 will probably be nice.
At this time, I'm making a few very small changes:
-1 Aether Pend
-1 Deflagration (5 should be good)
-2 Momentum
-1 Steammie
+2 Holy Light
+2 Crawler
We severely lack in-element quanta right now. Things will definitely have to be tossed - I figured this would happen, which is why I had the system I did set up, but whatever. We still have 16 hours to get this finished, we'll be fine.