A couple of things I have noticed and/or have questions regarding:
1) Do any glitches exist currently that cause an automatic loss? I played two games today where I had a 30+ bone wall up and 100 HP with Eternity keeping me from decking out, and I got a loss screen.
2) This is related to the first one, is there any way to see what caused you to lose? I wouldn't mind my losses if there were a console I could pull up and see the match logs, or even if there were a button to push to see the last round again.
3) Again, related to the last one, if there is no console available to everyone, can we have one implemented?
4) Is there any "good" way to upgrade my pillars? I cringe at the thought of spending 1.5k electrum on each of 15 pillars, just for one deck. I've been playing about 5-10 hours a week (not a lot I know) for the past month, and I am only just now fixing to upgrade my second card.
Thanks for reading
1) I'd bet you decked out (you get no warning before it happens). Even with Eternity out, it's easy to focus on killing your opponent and forgetting to rewind your creature. It used to happen to me enough that now I've made a habit of playing differently when I have 5 or less cards in my deck left so I don't deck out.
Be careful because after it draws a card, it can still display "1" as cards left in your deck for a second. It takes it a short time to adjust the count to 0.
2) Unfortunately, no. But after enough games you start to get a feel for how things ended the way they did.
3) Can't help you here, but it would be a nice addition.
4) In short, no, there is no shortcut to upgrading cards. But you should not be upgrading pillars first. Post your deck in the Deck Help section and ask how to go about upgrading your specific deck. As you upgrade cards and can consistently beat the AI with more Elemental Masteries (doubles the electrum won), upgrading will come a lot quicker. You will notice a pretty big difference in your deck with only 5 upgraded cards, if you upgrade the right ones.
Further, a lot of people will suggest you farm FGs, but the AI has been improved, and I personally don't feel it's very effective with only a few upgrades. I'm fairly new and I grind the AI5. I play about as much as you and upgrade about 3 cards a week.
Good luck.