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Not the right topic, Medzh, let's go to the Heroes of Might and Magic thread.
You're living the high life...
I haven't even seen any two-star cards, by the way, it's a pain to upgrade them.
If you only get 5-10 experience points per battle, then it gets tedious.
But if you get +100 experience for 30 coins, then it's quite cheap.
300 coins (the price of one new legendary card) should be enough to upgrade an existing one from one star to two. And from 1 to 3 - approximately 700-900 coins, I can't say for sure.

В тихой однообразной жизни всегда так бывает: каждый отдельный день бесконечно долог, но месяцы и годы мчатся с непостижимой быстротой.
I wanted to offer you some flowers, but a crown would suit a princess like you much better
Смысл жизни в том, что жизнь на тебе не заканчивается