Fun game...until you get to map 8 and realize the cards you maxed out have no way of competing with anything or anyone from that point on, and you have no way of getting better cards. And what's up with fire tokens only providing 3 star cards? I've used over 40 and never ONCE got a card over 3 stars.
I'm giving this game the same rating my comment will get: negative, negative, negative. >:(
This isn't a game so much as a bad joke. It should at least be filed under puzzle rather than strategy, because like so many other "tower defense" games, there are a plethora of options available and only 1 or 2 specific rotes of clicks that will yield successful results.
I play games to relax, not to be repeatedly punished when 95+% of attempted permutations result in defeat. If my choices are to follow a video walkthrough of the only winnable method of play-through, or spend an hour on each level struggling in vain to discover the only winning method in a vast sea of abject failure, I'd say the developer needs to pull the stick out of their arse and revamp the game so it's casually winnable. Unless you like volunteering yourself for torturous punishment with absolutely no hope of reward, your best bet is to click 1 or 2 stars and move on to a game that actually provides fun and entertainment.
 "Shopping Cart Hero"){kind=icon}
 "The King of Towers"){kind=icon}
 "Titan Surge"){kind=icon}
 "Giants and Dwarves TD"){kind=icon}