The game is pretty nice, there are several strategies that seem to work, which is nice, although it seems to me that you'll always end up relying far too much in the unit in square 5 no matter what. Would be nice to have interactions with other squares to allow for a bigger variety of strategies. There's also a big part of chance, but that's part of the game so I won't complain about it.
One big issue however. Whenever you start the ritual, it's 100% up to chance what units you have, and you can even get pretty awfull teams (3 pylons for instance), you can abandon ritual, and restart the game anyways not to be punished by randomness, but it's pretty annoying to be forced to press two different buttons and listen to the music restart the loop every soingle time, so you could at the very least have a "restart ritual" button in the first screen to make this less tedious.