A really cool concept for a digging game adding cards into the mix and there is tons of potential to build on this idea with more variations of cards, enemies and maybe even a choice to spend your points on upgrades or buying cards in a store adding that bit more strategy to the game. More scenery styles or hazards would be cool too. Well done adding the modifiers and Good job with a really fun game.
Please check out my game for the jam if you have the time.