Is your feature request related to a problem? Please describe.
It's not a big problem. However, I am trying to reach lv.13 recently, and I want to find a most efficient way using my gold to get xp by upgrading.
Describe the solution you'd like
I think it would be good if there is a page providing several combinition of card to upgrade one's card which may contain the most efficient way, the cheapest way or the most usable cards.
Is your feature request related to a problem? Please describe. It's not a big problem. However, I am trying to reach lv.13 recently, and I want to find a most efficient way using my gold to get xp by upgrading.
Describe the solution you'd like I think it would be good if there is a page providing several combinition of card to upgrade one's card which may contain the most efficient way, the cheapest way or the most usable cards.