Our circles have variable height. If it has to cover a 3D item, they are a sphere, but will rise enough to cover the item (like a tower) as a whole. If it covers a shield or the rim of a glass filled with water, it will act as a flat sheet or cover. If you need an explanation, Magic is mysterious :mrgreen: Nobody has tried to abuse this in my troupe. IN fact ypou can break most of the magic system if you abuse it to the extremes, so just don't do it and you will avoid countless hours of pain.