Thanks for this extensive review, it's really good!
I agree on all points, I had a rough (but fun) time putting this together alone so I just decided to roll with some imperfections on the initial release and see how it goes if at least the general direction is right, if people like the setting and stuff.
I'm thinking of a way of reworking the deck and the mana system. I've had some ideas after getting the feedback from this release.
Getting cards to combo or make them being used tactically in a bullet hell proved to be a surprisingly hard challenge that requires ton of iteration.
It's nice that you've mentioned One Step from Eden it's a great game, and I've been looking to make a more casual version of this sort of experience! Albeit I only found out that this game exists after completing 90% of this game.
Overall I'll be looking to improve things, thank you so much for your review again!