I love card games, and this game is a good example of the genre. It is simple, but at the same time there is a place for strategy in it.
From what I noticed in the balance, this slightly unbalanced ability "increases the value of the opponent's cards by 1", since some cards start to cost 6 mana units, which gives a strong advantage to the protwinik, because he can take several cards out of the game at once, and one of the simplest strategies in the game is to deprive the opponent all the cards. I would probably like to see a cost limit of 5 mana.
I would also like to mention the design of the game. I like the illustrations on the maps, but I would like to see the design on the backs of the maps.
I want to see the development of this project in the future, I like this game.
(I used Google translator, so it may be illiterate)