I'm going to do one more post so, yeah, I have so many idea's involving the DC universe.
Now this time, you'll begin to create your own Kryptonite substance. Causing various affects against humans and Kryptonians, for an example look at the chart below. Various amounts of Kryptonite is able to cause various effects against anyone without fail and possibly kill all life on planet. This is where your creative energy begins to spark! Go create!