Thoughts on the prices
NQ and NT should not be the same price, NT is a better card overall.
-NT does not require you to have a nymph.
-NT can make an upgraded nymph of any kind while being an un-upgraded card.
-NT can pick an other nymph right away if necessary, making it less predictable.
Aether is being destroyed with these prices, their cards are strong, very strong, but they will need to stack those unlike other elements which can pick 6 tops, but i'm sure you're all aware of this and discussed this already.
Immo is a little under priced.
Dry spell is under priced.
Thunderstorm is under priced
Ash eater is under priced, 10 is too low and will be picked as a fodder/small creature for cheap decks.
Antilon is good upgraded, 20 is too cheap, maybe 30?
RT is a little too high, i'd say 90.
RoF 40 as well, what's up with AoE being cheap x)?
Armagio is useless, 40 is too high.
Fire bolt needs to be 110 i think.
Devourer should be 90-100.
Nightmare should be 110.
Poison at 70 is too low.
May add more later