Nice game, though I found it pretty easy since you can just die as much as you like so long as you can gain lives. Maybe reduce the amount of lives you can get so that it is more focused on survival? It depends on what you want for the game to look like. Im also used to playing roguelikes where its permadeath, so I might be biased towards that.
Wow thanks so much for the feedback! Yeah, I mostly erred on the side of caution since I didnt want it to be too difficult. One idea was to introduce either a "no life gain cards" mode, or let players keep certain cards from being drawn by letting then disable it on a main menu screen or something?
Anywho, thanks so much for playing!! :)