Towercrawl Tactics

Towercrawl Tactics is a Roguelike Autobattler Card Game that's being developed for mobile platforms.  I've put about 7 months into this project so far and I've realized I've yet to get much feedback at all on this, so I created a WebGL build to hopefully get some constructive criticism. For some reason the game is kinda laggy on WebGL and I'm not sure why but it plays smoothly on Android. 

Anyway, there's still a few features missing (like the boss battles) and some of the art is just placeholder.  Please let me know whatever thoughts you might have because I'm dying for some quality feedback :)