Thank you for the feedback! Looking back, I definitely do think I could've done more to make the mechanics more unique, and if I do decide to expand this into a full game at some point, I'll definitely try to make it stand out some more. I have a couple of ideas already, perhaps expanding the item system and making it a bigger part of the gameplay, adding cards that can interact with items and items that can interact with cards, maybe enemies that can interact with your items too.
The feedback on the gameplay speed is very helpful too! If I make this into a full game, I'll be sure to speed up some of the animations or add a setting to speed them up somewhere in the game.