It is like the game Cookie Clicker with atrocious interface (stylized like an opulent board game with million different chits, tokens and cards all of which you must drag and handle manually) combined with MMO-tier crafting, where you have a ton of components but they all behave the same.
Art style is great and the story is good, but the game is extremely simplistic mechanically and very, very easy. I'm not exaggerating when I say that this is the easiest game I've played in my life. Even on bonebreaker difficulty you can literally play cards from left to right without thinking and still win with 100+ advantage.