Hey, I'm on a roll. Found another small bug due to "reserved" numbers, fixed it, and added five new spells which I think will add some interesting dimensions to the game: Runestone of Fortune, Runestone of Courage, Runestone of Faith, Runestone of Growth, Runestone of Peace (all self explanatory, pretty much).
Maybe if I come up with some great ideas, I'll add to the list of potential standing stones, and maybe give them some slightly different shapes so they start looking sort of like a stonehenge in your army lineup!