It’s very creative concept and feels great to play! Has a retro and nostalgic feel to it. However, battling enemies over and over again to get the cards required was a rather tedious grind - and this is mostly because of the random chance, so perhaps some balance and fine-tuning is needed here. There needs to be a way to heal out of combat, and skip playing a card too, otherwise, the player can end up in a situation where they essentially have to play all their cards, and if the RNG loot is not giving you big enough numbers to sustain or out-damage the enemy, it’s basically game over. Perhaps there could be better level design to enable the player to get back to the healthbug without getting blocked by rats all the time to ease the pressure a little bit. Overall, I enjoyed the combat and could see a lot of potential for this mechanic to shine. Great job!