[PrinzMegaherz]

I'm a bit underwhelmed:

The game gets repetitive very fast. When I finished the level, my hero had around 1200 kills, from killing the same wave of enemies again and again. Standard strategy: Cast healing tree on your front line troops, shoot that Ice Arrow at the weaker blue things and repeat until you have won.
Other things I don't like: The game gives you very few information about what's going on. I'am not quite sure what activating those monoliths does (those with a yellow or red glow). And there is no way to see the names of the enemy troops or their stats, which would be a great help to get a grip on what unit you should use to counter them.