Supergirl: "So weak! My powers are gone! Feels like Kryptonite, but it's a type of Kryptonite I've never encountered!" Villain: "That's right, Supergirl! This is a new type of Kryptonite that I've discovered called blue Kryptonite! My theory is correct; like green Kryptonite, blue Kryptonite doesn't effect normal human beings but it weakens you and makes you helpless! Now be a good girl and get inside that cage!" Supergirl: "You won't get away with this! Just wait until Superman and Power Girl come and rescue me! They should be here any minute!" Villain: "That's what I'm counting on, Supergirl! You see, I have blue Kryptonite collars for them, too! When they arrive, they will be just as helpless as you are!"