For those having trouble with the last stage, just use the 2nd hero with iron skin and titanic growth. Spam upgraded Golems and warriors on the defensive then when ready, do a titanic growth on a golem and attack his base. If he armageddons, iron skin your army to counter it. The giant golem should take out his base in about 10 hits :)
Slow slow game and ultra repetitive unnecessary farming. The battles runs at 1/2 or 1/3 the speed if you alt-tab out or surf on another tab in Google Chrome.
Impossible badge is pretty impossible to get. If you disable kicking damage, disable it for the computer too. No fun to get chain kicks from the computer opponent and still take damage when your own kicks are pretty much useless.
Challenge 16 is a horridly designed level. 98% of the time you either get insane (lose) or 1 shotted out of your 10 life within the first 2 turns. Constant reloading for the card City of R'lyeh and hoping 1/4 chance that the computer gets Mega just makes this level too frustrating and monotonous.
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