This is brilliant! The cards got my attention at first, as I was looking for something similar to Baten Kaitos. This may not be that, but it's pretty fun. A great blend of action and tactics, in my opinion.
I was able to get through this demo in around 50 minutes, although with 1 HP left. Being able to use cards outside of combat helped a lot with avoiding mob clusters (by zig zagging, dashing through and teleporting them away to make a path) and choosing my own battles.
I'm definitely looking forward to the future of Dungeon Drafters!
I wish I recorded the gameplay.