Upgraded cards have a sell price of 1100 - 1300 , how would you handle this problem ?
Let's be clear - I'm a newbie and I have only upgraded one card. I really like the idea and I don't see the selling issue as a big problem:
Firstly, I personally wouldn't sell my first upgraded cards. I would choose what to upgrade with care and use the cards. Others may think differently. Secondy, if I was to speculate in selling with a profit it wouldn't be that profitable:
Let say I have 1000 Electrum and I won 7 Pharoahs (I believe they sell at 1308?):
I could upgrade them and sell each one for a profit.
Sale # / Upgrade cost / Profit
1 1000 308
2 1050 258
3 1100 208
4 1150 158
5 1200 108
6 1250 58
7 1300 8
Total profit 1106But now I have
no upgraded cards and an upgrade is now 1350 for me. I will have to win 244 to upgrade the next card. And 1400 more after that.
Had I kept my first 7 upgraded cards it would have saved me 2450 in Electrum (compared to 7x1500). The total amount I could save is 2750 (10 upgrades - after that the price is 1500). I would definitely go for that option.
If we were talking about upgrading Nymphs (selling at 1608) it would be a different story - making the total profit 3830 for 10 Nymphs. But winning 10 Nymphs with no upgraded cards seems impossible to me. And if I am correct that upped Nymphs sell at 1608 (I never had one) you could always make 108 Electrum on that anyway - although selling an unupped Nymph for 908 seems like a better idea :-)
Players could also assume that the + 50 cost increase wouldn´t stop at 1500 (and quit because of the assumption). I think it´s not the right gift for new players.
Better use mechanice like Arena, Oracle money, predictions, and maybe daily quests, or modified costs for the AI levels (and pvp).
You could easily explain the new system in the Quests window.