Thanks guys, glad that you like it. I was actually thinking about how lead blocks Kryptonite when I came up with it, plus I needed some way for them to actually live on a world that has a substance that gives them powers and also harms them... and yes I could have been more creative, but I thought that since the elements come from her planet why not name them after that and most elements, minerals, compounds, etc. end in "ite" or "ium" so I just went with that.