Hey !
Some Bug I found on the way :
The UI when not in Full Screen was hiding the HP from the Enemy and my Energy points
The Bag Card (draw 2) didn't worked (nothing append)
Be aware the taking art from Blizard Game is a bit obvious ^^
So it was a really short (tooo short demo) I would Like to try it after I can at least feel that I'm crafting my deck.
where you can take it from there ? you have a lot to do in every direction but I would say that you should first have a demo with 10 or 15 encounter in a row (fight and shops alike) to test the engagement of the game. then Add a unique mechanic. Good Luck in your travel !