I'm not sure why the cards are hidden. The easiest way to get the deck codes is to go to the elements trainer if you need to see them and copy and paste the code.
http://www.elementsthegame.com/trainer.htmlThe hidden cards are usually the new cards like mindgate and pendelums.
My experience in getting the nymph out is quite good, but the key for me, since I only have 1 pn is to keep the deck size fairly small to increase the odds. The real challenge is to get the shard of readiness + quint on the nymph but it happens more often than you think. (In one variation, I even tried to add momentum as well to overcome fireshields and caraprice).
The shields/shards provide a significant amount of stall time. So usually I try to play as long as I can without using shields if shards allow for it.
Again, the win % is not great with this deck against FG but as I made clear it's a concept deck. Because of mindgate, there is much less need to pack your deck with creatures imho.
I keep trying to find different ways to try to decrease deck size but with FG its hard because they want to engage in creature and permanent control. If you lose the mindgates, the deck is dead- but if you add protection for your artifacts, the deck size increases too much to draw the nymph so its a very narrow window of trying to balance needs.
I think there is already a deck with 2 purple nymphs on the wiki that was posted before the new cards.
(One thing holding me back from upping the nymphs is the weekly tournament. It usually allows for unupped cards only, so if I want to ever use my nymphs in those, I can't up them. OTOH, I prefer the unupped to upped tourney format. Otherwise, I'd up my nymph.)
I mean you could try to build an entropy centric deck with quanta towers and a few creatures. I would say 2 mindflayers, 1 anubis, 1 maxwells demon, and 1 p/n.
Unupped mindflayers would allow for butterfly effects, anubis would immortalize, mindflayers would lobotomize, and pn would antimatter, but in practice the bulk of the deck might then work against it. Besides, as I explained I'm working on a concept.