Twisted Sister / Cover Up

S2, E11: "Twisted Sister" The Girls decide they need some help fighting crime, so they decide to create another Powerpuff Girl. Since they can't find sugar, spice, and everything nice, they use artificial sweetener, dirt and twigs and stuff, and everything nice. Their new sister turns out less than perfect. "Cover Up" Blossom and Bubbles discover that Buttercup has secretly been rubbing a security blanket before every Powerpuff battle to make herself a super fighter. The Girls must convince Buttercup that her strength is within her, not in a stinky blanket.