This is really cool card game. I wish there is a way to burn cards without costing a turn or maybe return all cards from hard to deck every dice roll. I like the simplicity of pixel art and idle animation on isometric landscape. I stayed til room 4 so I'm not sure if there is end goal to it.
If you want to expand this further, adding more card types will be nice. Maybe we can buy some in the shop after 2 rooms. Cards like Block and Slash that blocks the next 1 hit and perform 1 attack, Heavy Swipe that deals high damage to all targets at the cost of 2 turns.
It's a really good game for just 2 days. Well done!