I've been playing this game for a couple of days. Here's my review:
- I have this really bad habit of skipping the description when I'm about to play a game on itch. Maybe because a good game shouldn't need an explanation, but mostly because I'm lazy. Either way, it took me a good amount of time to understand what the game actually was. It's not the most intuitive of games, but once it clicks it's not hard to play and understand.
- I feel like 10/64 is just too small, IMHO. Also, 64 is a strange number: I got the feeling that you reused a Poker deck as the base (52+2 jokers) and added 10 cards, but there's no reason to do so in a digital card game. 65 with 50 dungeon cards and 15 from your deck or, maybe better, 50 with 40 dungeon cards and 10 personal ones.
- I feel like you could easily forget to watch your energy (or, at least, it happened a lot to me). In any case, you should probably put something on cards that can't be played, since once you start recognizing cards from the artworks only you will be playing them without reading the "insufficient energy for effect" box. Something like changing the color of cards without enough energy would work, too.
By the way, I'm kinda hooked to the game: are you still planning on bringing it to mobile?