Played the demo, and I'm already very excited to see where this goes. Pretty effective tactical mastery here, with cards and grid based decisions working seamlessly, with wiggle room to really decimate with card combos and keep yourself damageless. Encounters are excellently tuned to where you have a healthy amount of options at any point and time, and the difficulty ramps up well AND you can pretty much destroy the final boss in mere seconds with just the regular deck alone if your strategy is up to snuff.

Is certainly a demo in most senses of the word though, has some rough patches in terms of cpu performance (weirdly, this shit should not be intensive at all?), metagaming in terms of choosing your routes and choosing when to go to shops and healing when currently they cost WAY more than it really should, and a couple balance quirks. Like that example I said, beating the final boss in like a couple turns. Some of these cards are too OP for their own good. Regardless it's absolutely excellent, and definitely worth a look by more people.