It is what it says it is, a rogue-like deckbuilder. It's playable, but not really enjoyable (for me at least). The cards are hard to handle, sometimes a click is enough, sometimes you need to drag it, sometimes you have to drag it to a seemingly unrelated position on screen. The story, weird as it starts out to be, is quite nonexistant once you enter the actual game. A blant *rips the heart out* that only changes a bit between the different monsters is rather uninteresting.
You bring up some nice ideas though with cards that play a turn later, haven't seen that one yet (though I must admit I haven't played the big games of this genre). I could see some nice gameplay coming out of this feature. Some more explanation about how this works would've been nice though as it wasn't really obvious that effects like +damage or -damage only last one turn. Some sounds and visual effects would be nice to have as well to see what's actually happening when you play a card. Previewing effects on mana, health and targeted enemies too.
As it stands right now, there isn't much of a rogue-like feature in the game, no relics, no powerups and nothing unlocks when you win, or lose, so it's just a deckbuilder at the moment.
I hope this rather negative feedback doesn't dissuade you from developing the game further. I believe that at this point of development pointing things out that are missing/not working is more helpful than an undifferenciated praise, but nonetheless you did well on several things and have gotten to a point where you have a playable game you can show the world. I'm excited for how this game will turn out when more is added