I am still enjoying Elements.
If you play un-upgraded, you have a good range of deck options even without the trainer. Building a strong un-upgraded deck costs in the 500-1000 electrum range if you start with none of the cards, so it does not take long to bootstrap yourself into having several options for excellent tier 3 decks. You will probably earn back what you spent well before you get bored with your new toy, and you will earn cards for your next toy along the way.
My difficulty remains the cliff of upgraded cards. Tier 3 is trivially easy with a fast deck, but difficulty ramps up quickly from there. Tier 5 brings in half the False God issues, including extra quanta, draws, and health plus scattered upgraded cards. Tier 5 is not terribly difficult once you upgrade a half-dozen key cards in your deck, although it requires a different plan because you cannot rely on blazing speed against a double-health target. The Tier 6 False Gods are that cliff, some of them able to deal 100 damage by turn 4-7. Bootstrapping there is a lengthier process.
Because a fully upgraded deck costs in the 50,000 electrum range, you have far fewer options when trying the upper tiers. Once I have a fully upgraded deck, it will be easier to get to a second one, but that is a lot of games with the one deck. There is the familiar, gratifying feeling of illusory accomplishment as each upgraded card improves that initial deck. But altoholism, as ever, means going back to the newbie areas; I cannot expect much against False Gods when using a deck with only a couple upgraded cards.
Is it a sickness that I am not just using the trainer? If all I care about is the gameplay, I can skip the first C of CCG. I seem stuck on the notion that it is not the “real” game.