I honestly love this type of gameplay, i like it more then the other ones you have showcased. But i must say, Theres alot more to go, but why not set out a beta version thats small, and can be a work in progress while people enjoy what you have done? You've gone through so many changed it's not even funny, so set up the major components in lets say, ponyville and maybe one stage of fighting in the everfree forest, and let people buy lets say revival tokens to revive others for so you can start getting some income!
Looks great! I realize this is really only a test of your GUI. Just thought I'd let you know that if you rapidly click after selecting the burn spell you can perform it more than once before your next turn.