Thanks for playing and recording a video! I'll check the video later. I definitely was on the fence with the one-way doors in the fire area, knowing they'd be a little frustrating, and intentionally not having a map due to encounters being (relatively) small... luckily should only take a moment to get back to the beginning though, and hopefully left you feeling a little lost...
Glad to know you enjoyed thinking about the cards! That's definitely how I played too, although I laughed a bit when I had a friend play who very much analyzed everything and played perfectly, and then I had another friend play and she just played random cards and she got through the first floor in like a quarter of the time of the first friend, so it was definitely balanced perhaps too easy... but as long as they both had fun, I'm calling it a win =). I'm looking forward to seeing which broken combo you settled on in your video =).
Totally agree with defense feeling useless against ranged enemies, not sure on a good fix there...