REALLY needs the ability to not die! I mean, just an option to redo my last move would be enough - it doesn't even need a full save system. Maybe an easy mode, where when you die it lets you retake the last turn? I've played this a lot, and very rarely died from something other than my own mistakes.
Nice little addon, but a bit short - I've done the first 27 (free) levels in under an hour, so it would be nice to have some harder (bigger) levels. I guess that's what the original factor is for!
The boarder of the screen does turn red when less then 25% health. Other then that I'd just advise you to slow down a bit with your clicking. If you're clicking so fast you can't pay attention to health then you are probably clicking to fast.
Gave up on the snow boss - every time I kill him, he comes back to life instantly when he dies (4 times so far), and he has some sort of insta-kill that he uses to off the rest of my party, so I end up fighting him alone. You can't just give a boss infinite life without any explanation; I assume there's some secret way to beat him, but I haven't found it.
Started out fun, then turned into a pay to win grind - the rare cards are so rare, it's really boring being constantly curb stomped because I'm missing the rare card I need to complete my deck. And why do the heros keep saying "unlocked at level X" instead of just giving me the card???
It's not a choose your own adventure, because none of the choices actually change anything. It's just a story with a continue button between each paragraph.
I think a lot of commenters are missing part of the game. You can flip houses! Buy an empty lot, build up the house, then sell it. Quick way to make money for the early ramp-up
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Maybe its just not your kind of game? You've got to slow down a lot more if your not noticing your health dropping.