We really appreciate the kind words!
Limited-use “god powers” could be a really fun idea… Maybe once per match, the hero gets one “critical hit” which doubles his damage. Lots of fun possibilities there.
We really wanted to give the player some sort of option as to which card to pick as a reward for each boss fight. Giving the player some kind of option in terms of how they improve their deck is a huge part of what makes card battling games so fun – most of them are also “deck builders” in some way. However, from a design perspective, we weren’t sure whether the player should be able to pick the card directly, or whether that would be giving Fortuna too much direct control over the hero’s actions. Maybe Fortuna could give the player a “random” selection of 3 cards, but the hero ultimately picks which one to put in his deck? Eventually, we ran out of time and didn’t really get to implement either of these ideas, but we’d love to explore that area further.