Played for about 3 5 hours! Still haven't tried all deck archetypes yet, at least from what I could see. It definitely has some juice in it, and for those 3 5 hours I definitely was locked in onto the game.
However, I felt like the game really lacks soft synergies, the cards felt either too flat or too isolated in their own groups, this especially blows because the game requires you to add a card after every fight, and if the card you add won't help with the main strategy your deck has, then it is junk waiting to be sold/sacrificed while it piles onto your hand each fight. It felt like there was also an abundance of cards that felt a little too weak and might require buffs. Though, take this with a grain of salt cause I only have half the cards unlocked and I'm not that good of a card player lol.
Because of the "3 cards only" rule, I felt like each card I play should matter, either setting up something big or trying to play my main cards that drives my deck's strategy, but because of the way draw is handled, you end up with weak cards piling in the hand and are forced to do weak/mediocre turns to get them out, this hurts especially for cards that puts things into your hand, seeking a card from your deck for example not only wastes 1 card play, but also gives you -1 draw next turn.
But that's about all the main criticisms I have for the game, it was pretty fun and I'll definitely be back at some point to spend another 3 5 hours or so.