Very cool, although some rune's mechanics are a bit hard to understand, also would be very nice to remove some cards from deck if i dislike them
Also i may sound silly, but how to save and load game progress?
top right, then the 2nd option when the window pops up
You will get an upgrade to remove cards after a few unlocks.
I think the game is forcing you to try and have a go with all the cards to figure out synergies, before letting you decide how to trim your deck.