>>78498699Something something powers only work on the sane. I remember him going after Joker one time and Joker is so messed up in the head that not only was he immune to Spectre's powers, he stole Aztar's spirit from Corrigan and gained all the powers of the Spectre himself. It was real dumb.
Libra was a one shot JLA villain that had a set of scales that could steal half of anything. He stole half of Batman's intellect, half of Flash's speed and half of Superman's power, and then tried to steal power from the universe itself and ended up torn into a million pieces became he became the universe.