Thanks a lot for playing my game! I'll make sure to change the mana cost per draw post-jam. I don't really blame you for not understanding the game really. I barely help in that department. An in-game tutorial and an info mode (where you click on something and it gives you a description of what it is and what it does) were both planned but I didn't have the time to implement those. But I most likely will post-jam.
Thanks again for playing my game!