She-Ra: Princess of Power (1985)

S1E25 Small Problems

After saving Bow and Kowl, Glimmer lets the praise go to her head, strutting around like she’s invincible. Meanwhile, Catra tests out a brand-new shrinking concoction, zapping She-Ra, Swift Wind, and Glimmer with it. Suddenly, the trio finds themselves pint-sized, scrambling to navigate a world that’s now gigantic. As they struggle to reverse the effect, Glimmer’s overconfidence quickly deflates—literally and figuratively—forcing her to rely on her friends in a whole new way.