I don't think I understand how this fits the theme. Other than that it could be cool, attacking and the towers giving buffs is nice idea in itself. It just need some tweaking because right now you just have to shield and speed up your army and you win easily.
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Well instead of defending you attack in a tower defense game. It's wasn't strictly specified that a mechanic has to be missing from the game.
I know it's really easy to play, I didn't really have time to tweak the gameplay, but that's what happens when the idea is big and the time is short. I'm happy that at least it's playable :P
Thanks for the feedbeck it's good to know that it's not exactly clear how the game fits the theme.