actually I meant how they look, in wc1 and 2 they were wight and diamond like, while in wc3, they were purpleish blue, with a light coming through them and different colors moving around in the middle, in wc4, they were still purple, but didn't have anything in the middle and when they opened and closed they swirled, and in wcP and SO they were greenish with lights coming out of them and lights moving around in the middle. (I liked the ones in Prophecy the most)